In any moment of decision, the best thing you can do is the right thing. The worst thing you can do is nothing.
Resist much. Obey little.
Wise men speak because they have something to say; Fools because they have to say something.
Life's battles don't always go to the stronger or faster man. But sooner or later, the man who wins is the man who thinks he can.
Act as if the maxim of your action were to become through your will a general natural law
To avoid criticism say nothing, do nothing, be nothing.
Real knowledge is to know the extent of one's ignorance.
There are four ways, and only four ways, in which we have contact with the world. We are evaluated and classified by these four contacts: what we do, how we look, what we say, and how we say it.
It is neither good nor bad, but thinking makes it so.
Wisdom... comes not from age, but from education and learning.
Share our similarities, celebrate our differences.
The best revenge is to be unlike him who performed the injury.
Intelligence is the ability to adapt to change.
It is necessary to keep one's compass in one's eyes and not in the hand, for the hands execute, but the eye judges.
If we do not lay out ourselves in the service of mankind whom should we serve?
The more skilled you are at something, the worse you are at it when showing someone.
What can't be cured must be endured.
Man is not the creature of circumstances, Circumstances are the creatures of men.
An understanding of the natural world is a source of not only great curiosity, but great fulfilment.
Whatever you think the world is withholding from you, you are withholding from the world.
Without courage, wisdom bears no fruit.