“And swans seem whiter if swart crowes be by.”

“With that I saw two swans of goodly hue
Come softly swimming down along the Lee:
Two fairer birds I yet did never see;
The snow which doth the top of Pindus strow
Did never whiter show,
Nor Jove himself, when he a swan would be
For love of Leda, whiter did appear”

“Charming ladies, the beauty of a flock of white doves is better enhanced by a black crow than by a pure white swan.”

“Establishing by observation that there is just one black swan falsifies "all swans are white". This is an unexceptional and undeniable point. However, using it as grounds to support a falsificationist philosophy of science is not as straightforward as it might seem.”

“Let the long contention cease!
Geese are swans, and swans are geese.”

“A crow when it sees some foodstuff, it crows, gathers other crows and shares it with them. Crows and fowl have a better social etiquette than a man.”

“A distance “as the crow flies” is significant only to crows.”

“Were I a nightingale, I would act the part of a nightingale; were I a swan, the part of a swan.”

“A rooster crows only when it sees the light. Put him in the dark and he'll never crow. I have seen the light and I'm crowing.”

“If you wish to upset the law that all crows are black, you mustn't seek to show that no crows are; it is enough if you prove one single crow to be white.”