The fact that man knows right from wrong proves his intellectual superiority to the other creatures; but the fact that he can do wrong proves his moral inferiority to any creatures that cannot.
Mark TwainYou can't reason with your heart; it has its own laws, and thumps about things which the intellect scorns.
Mark TwainI am a democrat only on principle, not by instinct, nobody is that. Doubtless some people say they are, but this world is grievously given to lying.
Mark TwainOne must keep one's character. Earn a character first if you can, and if you can't, then assume one. From the code of morals I have been following and revising and revising for 72 years I remember one detail. All my life I have been honest - comparatively honest. I could never use money I had not made honestly - I could only lend it.
Mark Twain