A rolling stone gathers no moss.
He who angers you conquers you.
I never worry about action, but only inaction.
No man is free who is not master of himself.
An invasion of armies can be resisted, but not an idea whose time has come.
Never let lack of money interfere with having fun.
Excellence is not a skill. It is an attitude.
People may doubt what you say, but they will believe what you do.
The most formidable weapon against errors of every kind is reason.
It’s important to know that words don’t move mountains. Work, exacting work moves mountains.
