Half the world is composed of people who have something to say and can't, and the other half who have nothing to say and keep on saying it.
I believe that one defines oneself by reinvention. To not be like your parents. To not be like your friends. To be yourself. To cut yourself out of stone.
Don't take tomorrow to bed with you.
All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.
Judge not unless you judge yourself.
The ethos of redemption is realized in self-mastery, by means of temperance, that is, continence of desires.
The best revenge is to be unlike him who performed the injury.
Adapt what is useful, reject what is useless, and add what is specifically your own.
One just needs a little alertness to see and find out: Life is really a great cosmic laughter.
If we do not lay out ourselves in the service of mankind whom should we serve?
Boredom is the root of all evil - the despairing refusal to be oneself.
If you don't behave as you believe, you will end by believing as you behave.
Science may set limits to knowledge, but should not set limits to imagination.
Whatever it is you're seeking won't come in the form you're expecting.
Just remember, once you're over the hill you begin to pick up speed.
One never notices what has been done; one can only see what remains to be done.
There are things known and there are things unknown, and in between are the doors of perception.
To be wronged is nothing unless you continue to remember it.
There is a wisdom of the head, and... there is a wisdom of the heart.
Nothing fixes a thing so intensely in the memory as the wish to forget it.
A house divided against itself cannot stand.