"Be true to your work, your word, and your friend."

"A simple and independent mind does not toil at the bidding of any prince."

"The cost of a thing is the amount of what I call life which is required to be exchanged for it, immediately or in the long run."

"If you would convince a man that he does wrong, do right. Men will believe what they see."

"I have lived some thirty years on this planet and I have yet to hear the first syllable of valuable or even earnest advice from my seniors."

"Do not be too moral. You may cheat yourself out of much life. Aim above morality. Be not simply good; be good for something."

"I wanted to do something nice so I bought my mother-in- law a chair. Now they won't let me plug it in."

"Women are great. But I didn't take up acting so I could kiss a girl."

"The history of human opinion is scarcely anything more than the history of human errors."

"Individuals may form communities, but it is institutions alone that can create a nation."

"Act as if the maxim of your action were to become through your will a general natural law"

"That cannot be safe which is not honourable."