“The cock does not crow till it has thrice flapped its wings; the parrot in moving among boughs never puts its feet excepting where it has first put its beak. Vows are not made till Hope is dead.”
The Notebooks of Leonardo da Vinci (1883), XX Humorous Writings
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Leonardo Da Vinci 363
Italian Renaissance polymath 1452–1519Related quotes

Sādhanā : The Realisation of Life http://www.spiritualbee.com/spiritual-book-by-tagore/ (1916)
Context: In love all the contradictions of existence merge themselves and are lost. Only in love are unity and duality not at variance. Love must be one and two at the same time.
Only love is motion and rest in one. Our heart ever changes its place till it finds love, and then it has its rest. But this rest itself is an intense form of activity where utter quiescence and unceasing energy meet at the same point in love.
In love, loss and gain are harmonised. In its balance-sheet, credit and debit accounts are in the same column, and gifts are added to gains. In this wonderful festival of creation, this great ceremony of self-sacrifice of God, the lover constantly gives himself up to gain himself in love. Indeed, love is what brings together and inseparably connects both the act of abandoning and that of receiving.

Though the slender Italian greyhound has a strange contrast with the short-legged bull-dog, they are both dogs in their teeth and in their skull. The mouse, even, has not been transmuted into the cat, nor the hen into the turkey, nor the duck into the goose, nor the hawk into the eagle, and still less the monkey into the man.
The facts and fancies of Mr. Darwin (1862)

1840s, Essays: Second Series (1844), Politics

Idle Thoughts of an Idle Fellow (1886)
Context: It is well, dear ladies, for us old sinners that you study only books. Did you read mankind, you would know that the lad's shy stammering tells a truer tale than our bold eloquence. A boy's love comes from a full heart; a man's is more often the result of a full stomach. Indeed, a man's sluggish current may not be called love, compared with the rushing fountain that wells up when a boy's heart is struck with the heavenly rod. If you would taste love, drink of the pure stream that youth pours out at your feet. Do not wait till it has become a muddy river before you stoop to catch its waves.
Elvis and Gladys (1985), Ch. 5 : A Romance, p. 55
Context: What is always overlooked is that although the poor want to be rich, it does not follow that they either like the rich or that they in any way want to emulate their characters which, in fact, they despise. Both the poor and the rich have always found precisely the same grounds on which to complain about each other. Each feels the other has no manners, is disloyal, corrupt, insensitive — and has never put in an honest day's work in its life.

Huey Long (Williams p. 761)