No one cares how much you know, until they know how much you care
To do great things is difficult, but to command great things is more difficult.
To a wise and good man the whole earth is his fatherland.
Creativity is the greatest rebellion in existence.
In anger we should refrain both from speech and action.
Drop the idea that you are Atlas carrying the world on your shoulders. The world would go on even without you. Don't take yourself so seriously.
Adapt what is useful, reject what is useless, and add what is specifically your own.
The greatest power we have is the power of choice.
Tomorrow hopes we have learned something from yesterday.
Honesty is the first chapter in the book of wisdom.
Be silent or let thy words be worth more than silence.
Rational discussion is useful only when there is a significant base of shared assumptions.
Judge a man by his questions rather than by his answers.
It is the mark of an educated mind to be able to entertain a thought without accepting it.
Where there is anger, there is always pain underneath.
Just remember, once you're over the hill you begin to pick up speed.
A man is literally what he thinks.
Moderation in temper is always a virtue; but moderation in principle is always a vice.
There are things known and there are things unknown, and in between are the doors of perception.
Yesterday is but today's memory and tomorrow is today's dream.
In the practice of tolerance, one's enemy is the best teacher.