The fact that the great scientist believed in flying machines was the one thing that encouraged us to begin our studies.
When I give, I give myself.
You have to make the rules, not follow them.
Argue not concerning God,re-examine all that you have been told at church or school or in any book, dismiss whatever insults your soul
Change your thoughts and you change your world.
Courage is the most important of all the virtues, because without courage you can't practice any other virtue consistently. You can practice any virtue erratically, but nothing consistently without courage.
You yourself, as much as anybody in the entire universe, deserve your love and affection.
If you want a thing done well, do it yourself.
Some people don't like change, but you need to embrace change if the alternative is disaster.
How long should you try? Until.
If you think in terms of a year, plant a seed; if in terms of ten years, plant trees; if in terms of 100 years, teach the people.
You can't live a perfect day until you do something for someone who will never be able to repay you.
A man should look for what is, and not what he thinks should be.
We all have possibilities we don't know about. We can do things we don't even dream we can do.
Treat a work of art like a prince. Let it speak to you first.
For a man who no longer has a homeland, writing becomes a place to live.
People often say that motivation doesn't last. Well, neither does bathing - that's why we recommend it daily.
I donít think we are going to become extinct. We are very clever and very resourceful.
Out of intense complexities intense simplicities emerge.
No one is free who has not obtained the empire of himself. No man is free who cannot command himself.
In winter, I plot and plan. In spring, I move.