Anything that makes weak - physically, intellectually and spiritually, reject it as poison.
No great discovery was ever made without a bold guess.
This is one small step for a man, one giant leap for mankind.
Work gives you meaning and purpose and life is empty without it.
Some people don't like change, but you need to embrace change if the alternative is disaster.
In winter, I plot and plan. In spring, I move.
Weakness of attitude becomes weakness of character.
When obstacles arise, you change your direction to reach your goal; you do not change your decision to get there.
People should pursue what they're passionate about. That will make them happier than pretty much anything else.
If you can't feed a hundred people, then just feed one.
It's what you learn after you know it all that counts.
Never let the future disturb you. You will meet it, if you have to, with the same weapons of reason which today arm you against the present.
When every physical and mental resource is focused, one's power to solve a problem multiplies tremendously.
When you believe in a thing, believe in it all the way, implicitly and unquestionably.
There are only 3 colors, 10 digits, and 7 notes; its what we do with them that's important.
Whether you think you can, or you think you can't - you're right.
A long apprenticeship is the most logical way to success. The only alternative is overnight stardom, but I can't give you a formula for that.
It always seems impossible until it's done.
He who is not courageous enough to take risks will accomplish nothing in life
We were a family who had come from nothing and now we had respect from French people of all sorts.
I don't think necessity is the mother of invention. Invention ... arises directly from idleness, possibly also from laziness. To save oneself trouble.