He was a dreamer, a thinker, a speculative philosopher... or, as his wife would have it, an idiot.

My dear friend, clear your mind of cant.

The fact that the great scientist believed in flying machines was the one thing that encouraged us to begin our studies.

My optimism wears heavy boots and is loud.

I hated every minute of training, but I said, 'Don't quit. Suffer now and live the rest of your life as a champion'.

I just want to be able to play and make people feel good with what I do. When you're thinking that way, anything can happen. And, usually, what happens is good.

Any book that helps a child to form a habit of reading, to make reading one of his deep and continuing needs, is good for him.

Change the way you look at things and the things you look at change.

We cannot direct the wind, but we can adjust the sails.

Motivation is what gets you started. Habit is what keeps you going.

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

Happiness depends more on the inward disposition of mind than on outward circumstances.

I do not care so much what I am to others as I care what I am to myself.

Wealth is not about having a lot of money; it's about having a lot of options.

Imagination is everything. It is the preview of life's coming attractions.

I'm not telling you it's going to be easy - I'm telling you it's going to be worth it.

Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young.

I'll try anything once, twice if I like it, three times to make sure.

We delight in the beauty of the butterfly, but rarely admit the changes it has gone through to achieve that beauty.

Get up, stand up, Stand up for your rights. Get up, stand up, Don't give up the fight.

Truth can be stated in a thousand different ways, yet each one can be true.