Morals are an acquirement - like music, like a foreign language, like piety, poker, paralysis - no man is born with them.

Always do what is right. It will gratify half of mankind and astound the other.

It is curious - curious that physical courage should be so common in the world, and moral courage so rare

Conscience, man's moral medicine chest

Right is right, and wrong is wrong, and a body ain’t got no business doing wrong when he ain’t ignorant and knows better.

A man's character may be learned from the adjectives which he habitually uses in conversation.