When obstacles arise, you change your direction to reach your goal; you do not change your decision to get there.

How wrong is it for a woman to expect the man to build the world she wants, rather than to create it herself?

It always seems impossible until it's done.

I will take fate by the throat; it will never bend me completely to its will.

Know thyself.

I am the captain of my soul.

If you want a thing done well, do it yourself.

No great discovery was ever made without a bold guess.

Anything that makes weak - physically, intellectually and spiritually, reject it as poison.

My dear friend, clear your mind of cant.

Nobody can hurt me without my permission.

If you don't know, the thing to do is not to get scared, but to learn.

There is no greater agony than bearing an untold story inside you.

Only the wisest and stupidest of men never change.

They deem me mad because I will not sell my days for gold; and I deem them mad because they think my days have a price.

I don’t think we are going to become extinct. We are very clever and very resourceful.

When they say the sky's the limit to me that's really true

You have brains in your head. You have feet in your shoes. You can steer yourself any direction you choose.

All wealth is the product of labor.

I can never stand still. I must explore and experiment. I am never satisfied with my work. I resent the limitations of my own imagination.

A pure hand needs no glove to cover it.