I don't know who my grandfather was; I'm much more concerned to know what his grandson will be.
Memories of our lives, of our works and our deeds will continue in others.
No one is free who has not obtained the empire of himself. No man is free who cannot command himself.
Listen to many, speak to a few.
A man can't soar too high, when he flies with his own wings.
If you fell down yesterday, stand up today.
Be more concerned with your character than your reputation, because your character is what you really are, while your reputation is merely what others think you are.
The fact that the great scientist believed in flying machines was the one thing that encouraged us to begin our studies.
When I was in college, I wanted to be involved in things that would change the world.
Whenever a negative thought concerning your personal power comes to mind, deliberately voice a positive thought to cancel it out.
I don't think necessity is the mother of invention. Invention ... arises directly from idleness, possibly also from laziness. To save oneself trouble.
The fishermen know that the sea is dangerous and the storm terrible, but they have never found these dangers sufficient reason for remaining ashore.
A man is but the product of his thoughts. What he thinks, he becomes.
Be miserable. Or motivate yourself. Whatever has to be done, it's always your choice.
We need never be ashamed of our tears.
If we want a free and peaceful world, if we want to make the deserts bloom and man grow to greater dignity as a human being-we can do it.
Wanting to be someone else is a waste of who you are
There is no greater agony than bearing an untold story inside you.
The way I see it, if you want the rainbow, you gotta put up with the rain.
You can chain me, you can torture me, you can even destroy this body, but you will never imprison my mind.
You shape your own destiny.