There is a certain consideration, and a general duty of humanity, that binds us not only to the animals, which have life and feeling, but even to the trees and plants. We owe justice to people, and kindness and benevolence to all other creatures who may be susceptible of it. There is some intercourse between them and us, and some mutual obligation.

I have seen people rude by being over-polite.

It is an absolute perfection... to get the very most out of one's individuality.

How many things we held yesterday as articles of faith which today we tell as fables.

Honesty is a question of right and wrong, not a matter of policy

Of all human and ancient opinions concerning religion, that seems to me the most likely and most excusable, that acknowledged God as an incomprehensible power, the original and preserver of all things, all goodness, all perfection, receiving and taking in good part the honour and reverence that man paid him, under what method, name, or ceremonies soever.

Seeing that the Senses cannot decide our dispute, being themselves full of uncertainty, we must have recourse to Reason; there is no reason but must be built upon another reason: so here we are retreating backwards to infinity.