Never do anything when you are in a temper, for you will do everything wrong.
Be curious, not judgmental.
Learn from the mistakes of others. You can never live long enough to make them all yourself.
Don't expect to build up the weak by pulling down the strong.
Each problem that I solved became a rule which served afterwards to solve other problems.
I wanted to change the world. But I have found that the only thing one can be sure of changing is oneself.
I've come to believe that all my past failure and frustration were actually laying the foundation for the understandings that have created the new level of living I now enjoy.
Courage is resistance to fear, mastery of fear - not absence of fear.
If we do not lay out ourselves in the service of mankind whom should we serve?
The noblest pleasure is the joy of understanding.
No one cares how much you know, until they know how much you care
It is not enough to have a good mind; the main thing is to use it well.
You can best serve civilization by being against what usually passes for it.
The oldest, shortest words- 'yes' and 'no'- are those which require the most thought.
A house divided against itself cannot stand.
A crust eaten in peace is better than a banquet partaken in anxiety.
At the center of your being you have the answer; you know who you are and you know what you want.
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.
Everything excellent is as difficult as it is rare.
We never see ourselves as others see us.
To be wronged is nothing unless you continue to remember it.