Do you think I was born in a wood to be afraid of an owl?

I remember it was with extreme difficulty that I could bring my master to understand the meaning of the word opinion, or how a point could be disputable; because reason taught us to affirm or deny only where we are certain; and beyond our knowledge we cannot do either.

What they do in heaven we are ignorant of; what they do not do we are told expressly.

The chameleon, who is said to feed upon nothing but air, has of all animals the nimblest tongue.

There is nothing in this world constant, but inconstancy.

We are so fond on one another because our ailments are the same.

I have known some men possessed of good qualities which were very serviceable to others, but useless to themselves; like a sun-dial on the front of a house, to inform the neighbours and passengers, but not the owner within.