“Happiness is not the reward of virtue, but is virtue itself; nor do we delight in happiness because we restrain from our lusts; but on the contrary, because we delight in it, therefore we are able to restrain them.”

"On the Pleasure of Painting"
Table Talk: Essays On Men And Manners http://www.blupete.com/Literature/Essays/TableHazIV.htm (1821-1822)

[2012, Echoes of Perennial Wisdom, World Wisdom, 65, 978-1-93659700-0]
Spiritual path, Virtue

Exsurge Domine (1520)
Context: With the advice and consent of these our venerable brothers, with mature deliberation on each and every one of the above theses, and by the authority of almighty God, the blessed Apostles Peter and Paul, and our own authority, we condemn, reprobate, and reject completely each of these theses or errors as either heretical, scandalous, false, offensive to pious ears or seductive of simple minds, and against Catholic truth. By listing them, we decree and declare that all the faithful of both sexes must regard them as condemned, reprobated, and rejected…. We restrain all in the virtue of holy obedience and under the penalty of an automatic major excommunication....
Moreover, because the preceding errors and many others are contained in the books or writings of Martin Luther, we likewise condemn, reprobate, and reject completely the books and all the writings and sermons of the said Martin, whether in Latin or any other language, containing the said errors or any one of them; and we wish them to be regarded as utterly condemned, reprobated, and rejected. We forbid each and every one of the faithful of either sex, in virtue of holy obedience and under the above penalties to be incurred automatically, to read, assert, preach, praise, print, publish, or defend them. They will incur these penalties if they presume to uphold them in any way, personally or through another or others, directly or indirectly, tacitly or explicitly, publicly or occultly, either in their own homes or in other public or private places.

Source: The Library at Night

Source: Longing for the Harmonies: Themes and Variations from Modern Physics (1987), Ch.11 Explosions and Fluourescence (or, Entropy's Revenge)

Source: The Story of Philosophy (1926), p. 87. The quoted phrases within the quotation are from the Nicomachean Ethics, Book II, 4; Book I, 7

Speech for the Academy Awards protesting the treatment of American Indians, written by Brando, as it appeared in the New York Times (March 30, 1973)

Variant: I don't sing because I'm happy. I'm happy because I sing.

[2005, Stations of Wisdom, World Wisdom, 94, 978-0-94153218-1]
God, Reverential fear and love