“Of which, if thou be a severe, sour-complexioned man, then I here disallow thee to be a competent judge.”

Response to a question by an agent of the US Immigration and Naturalization Service in 1954 as to what he thought of Karl Marx, often cited as an indication of his detachment from political sensibilities and the situations of the McCarthy era. He was afterwards denied a return visa for re-entering the US until 1959, after attending the International Congress of Mathematicians in Amsterdam; as quoted in The Man Who Loved Only Numbers : The Story of Paul Erdős and the Search for Mathematical Truth (1998) by Paul Hoffman, p. 128

"April", in Poems (1859)
Context: p>The irrevocable Hand
That opes the year's fair gate, doth ope and shut
The portals of our earthly destinies;
We walk through blindfold, and the noiseless doors
Close after us, for ever.Pause, my soul,
On these strange words — for ever — whose large sound
Breaks flood-like, drowning all the petty noise
Our human moans make on the shores of Time.
O Thou that openest, and no man shuts;
That shut'st, and no man opens — Thee we wait!</p

Source: Dictionary of Burning Words of Brilliant Writers (1895), p. 85

VII, 58
Meditations (c. 121–180 AD), Book VII

Source: The Life of St. Teresa of Jesus (c.1565), Ch. XXV. "Divine Locutions. Discussions on That Subject" ¶ 22 & 23
Context: All things fail; but Thou, Lord of all, never failest! They who love Thee, oh, how little they have to suffer! oh, how gently, how tenderly, how sweetly Thou, O my Lord, dealest with them! Oh, that no one had ever been occupied with any other love than Thine! It seems as if Thou didst subject those who love Thee to a severe trial: but it is in order that they may learn, in the depths of that trial, the depths of Thy love. O my God, oh, that I had understanding and learning, and a new language, in order to magnify Thy works, according to the knowledge of them which my soul possesses! Everything fails me, O my Lord; but if Thou wilt not abandon me, I will never fail Thee. Let all the learned rise up against me, — let the whole creation persecute me, — let the evil spirits torment me, — but do Thou, O Lord, fail me not; for I know by experience now the blessedness of that deliverance which Thou dost effect for those who trust only in Thee. In this distress, — for then I had never had a single vision, — these Thy words alone were enough to remove it, and give me perfect peace: "Be not afraid, my daughter: it is I; and I will not abandon thee. Fear not."
It seems to me that, in the state I was in then, many hours would have been necessary to calm me, and that no one could have done it. Yet I found myself, through these words alone, tranquil and strong, courageous and confident, at rest and enlightened; in a moment, my soul seemed changed, and I felt I could maintain against all the world that my prayer was the work of God. Oh, how good is God! how good is our Lord, and how powerful! He gives not counsel only, but relief as well. His words are deeds. O my God! as He strengthens our faith, love grows.

Meditations. v. 1.
Bartlett's Familiar Quotations, 10th ed. (1919)

Thoughts and Aphorisms (1913), Karma

Makrina, in Emperor and Galilean (1873), Final lines.

The Twelfth Revelation, Chapter 26
Context: After this our Lord shewed Himself more glorified, as to my sight, than I saw Him before wherein I was learned that our soul shall never have rest till it cometh to Him, knowing that He is fulness of joy, homely and courteous, blissful and very life.
Our Lord Jesus oftentimes said: I IT AM, I IT AM: I IT AM that is highest, I IT AM that thou lovest, I IT AM that thou enjoyest, I IT AM that thou servest, I IT AM that thou longest for, I IT AM that thou desirest, I IT AM that thou meanest, I IT AM that is all. I IT AM that Holy Church preacheth and teacheth thee, I IT AM that shewed me here to thee. The number of the words passeth my wit and all my understanding and all my powers. And they are the highest, as to my sight: for therein is comprehended — I cannot tell, — but the joy that I saw in the Shewing of them passeth all that heart may wish for and soul may desire. Therefore the words be not declared here; but every man after the grace that God giveth him in understanding and loving, receive them in our Lord’s meaning.