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

People throw stones at you and you convert them into milestones.

Most people live and die with their music still unplayed. They never dare to try.

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

I am as bad as the worst, but, thank God, I am as good as the best.

Great things are not done by impulse, but by a series of small things brought together.

Whatever you do will be insignificant, but it is very important that you do it.

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

Everything you can imagine is real.

The deeds you do may be the only sermon some persons will hear today.

The secret of health for both mind and body is not to mourn for the past, nor to worry about the future, but to live the present moment wisely and earnestly.

I know in my heart that man is good, that what is right will always eventually triumph, and there is purpose and worth to each and every life.

Listen to many, speak to a few.

We are what we repeatedly do. Excellence, then, is not an act, but a habit.

To go too far is as bad as to fall short.

Keep your face to the sunshine and you will never see the shadow.

The fishermen know that the sea is dangerous and the storm terrible, but they have never found these dangers sufficient reason for remaining ashore.

Always remember you are braver than you believe, stronger than you seem, smarter than you think and twice as beautiful as you’ve ever imagined.

The people who were trying to make this world worse are not taking the day off. Why should I?

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.

Do not be afraid. Do not be satisfied with mediocrity. Put out into the deep and let down your nets for a catch.