Whoever does not seek the Cross of Christ does not seek the glory of Christ.
St. John of the Cross

"My patrons in Heaven and my chosen favorites are those who have stolen it - like the Holy Innocents and the Good Thief. The great Saints have earned it by their works; as for me, I will imitate the thieves, I will have it by ruse, a ruse of Love which will open its gates to me and to poor sinners. The Holy Ghost encourages me, saying in the Book of Proverbs: O little one, come, learn subtilty of Me. (Prov. 1:4)"
~St. Thérèse of the Child Jesus and the Holy Face, from Counsels and Reminiscences

I wish I could persuade everyone to be devoted to this glorious saint, for I have great experience of the blessings he can obtain from God.  I have never known anyone to be devoted to him and render him particular services who did not noticably advance in virtue, for he gives very real help to souls who commend themselves to him.  For some years now, I think, I have made some request of him every year on his festival and have always had it granted.  If my petition is in any way ill directed, he directs it aright for my greater good.
St. Teresa of Jesus from her Autobiography

"A soul united to Jesus is a living smile that radiates Him and gives Him." ( Letter 91 )
~Blessed Elizabeth of the Trinity

Those who practice prayer should have a special affection for him [St. Joseph] always... If anyone cannot find a master to teach him how to pray, let him take this glorious saint as his master, and he will not go astray.
St. Theresa of Jesus from her Autobiography

Lucho dear, throughout these days I have kept you here with me in this retreat... How I'd like to share with you what I feel, little brother of my soul. How I'd love to show you the lovely infinite horizon beyond creation that I experience and contemplate. I love God now a thousand times more than I did before, because I hadn't known Him. He reveals and makes Himself known to souls that really seek to know and love Him. Everything on earth, dear Lucho, seems to shrink, to lose value before the Divinity which, like an infinite Sun, continues to shine upon my miserable soul with its rays. Oh, if you could go to the depths of my soul even for an instant, you'd see me captivated by that Beauty, by that incomprehensible Goodness. How I'd love to bind the hearts of creatures and surrender them to divine Love! You've never known the heaven that I, through God's mercy, possess in my heart. Yes. I have a heaven in my soul, because God is there, and God is heaven.
St. Teresa of Jesus of the Andes from her letter to her brother Lucho

O soul, most beautiful of creatures, who so earnestly longs to know the place where your Beloved is, that you may seek him and be united to him.  You are yourself thevery tabernacle where he dwells, the secret chamber of his retreat where he is hidden.  Rejoice therefore and exult, because all your good and all your hope is so near you as to be within you. Yes, rather rejoice that you cannot be without it, for lo ;the kingdom of God is within you;.  So says the Bridegroom himself, and his servant St. Paul adds: 'You are the temple of the living God'.  What joy for the soul to learn that God never abandons it even in mortal sin, how much less in a state of grace:  What more can you desire, what more  can you seek outside, seeing that within you you have your riches, your delight, your Beloved whom you seek and desire.
St. John of the Cross from Spiritual Canticle, Stanza 1

"It is not to remain in a golden ciborium that He comes down each day from Heaven, but to find another Heaven, the Heaven of our soul in which He takes delight."
~St. Thérèse of the Child Jesus and the Holy Face

"By our little acts of charity practiced in the shadows we convert souls far away, we help missionaries, we win for them abundant alms; and by that means build actual dwellings spiritual and material for our Eucharistic Lord."
~St. Thérèse of the Child Jesus and the Holy Face

it is not so essential to think much as to love much: therefore you must practice whatever most excites you to this. Perhaps we do not know what love is, nor does this greatly surprise me. Love does not consist in great sweetness of devotion, but in a fervent determination to strive to please God in all things, in avoiding, as far as possible, all that would offend Him, and in praying for the increase of the glory and honor of His Son and for the growth of the Catholic Church. These are the signs of love; do not imagine that it consists in never thinking of anything but God, and that if your thoughts wander a little all is lost.
St. Teresa of Jesus The Interior Castle Chapter 1

O Eternal Word, Word of my God, I want to spend my life in listening to You, to become wholly teachable that I may learn from You.  Then, through all nights, all voids, all helplessness, I want to gaze on You always and remain in Your great light.  O my beloved Star, so fascinate me that I may not withdraw from Your radiance. 
Blessed Elizabeth of the Trinity from Elevation to the Most Holy Trinity

When we consider the divine world that envelops us already here in our exile and in which we can move, oh, then things here below disappear;  all of that doesn’t exist, it is less than nothing.  The saints, for their part, understood true knowledge so well, the knowledge that makes us leave everything, and especially ourselves, so we can fly to God and live solely with Him!
Blessed Elizabeth of the Trinity from Letter 184

In order to be an image of God, the spirit must turn to what is eternal, hold it in spirit, keep it in memory, and by loving it, embrace it in the will. 
~ St. Teresa Benedicta of the Cross (Edith Stein)

...does it ever happen to you that when you're looking at the ocean you feel a longing for the infinite? We feel in our soul an inexplicable loneliness that only God can fill, because everything seems so very small.
St. Teresa of Jesus of the Andes from her Letters

I took for my advocate and lord the glorious St. Joseph, and commended myself to him... I do not remember even now that I have ever asked anything of him which he has failed to grant. I am astonished at the great favors which God has bestowed on me through this blessed saint, and at the perils from which He has freed me, both in body and in soul.  To other saints the Lord seems to have given grace to succor us in some of our necessities but of this glorious saint my experience is that he succors us in them all and that the Lord wishes to teach us that as He was Himself subject to him on earth (for, being His guardian and being called His father, he could command Him) just so in Heaven He still does all that he asks. 
St. Teresa of Jesus from her Autobiography