It's the little details that are vital. Little things make big things happen.

The past cannot be changed. The future is yet in your power.

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

Lack of direction, not lack of time, is the problem. We all have twenty-four hour days.

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

It's the possibility of having a dream come true that makes life interesting.

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

Focus on where you want to go, not on what you fear.

You'll never do a whole lot unless you're brave enough to try.

We are all in the gutter, but some of us are looking at the stars.

You have power over your mind - not outside events. Realize this, and you will find strength.

Improvement makes strait roads, but the crooked roads without Improvement, are roads of Genius.

This is one small step for a man, one giant leap for mankind.

All the darkness in the world cannot extinguish the light of a single candle.

When you're at the end of your rope, tie a knot and hold on

Freedom from the desire for an answer is essential to the understanding of a problem.

You can't learn in school what the world is going to do next year.

Be the change that you wish to see in the world.

Determine never to be idle. No person will have occasion to complain of the want of time, who never loses any. It is wonderful how much may be done, if we are always doing.

If you can't you must, and if you must you can.

You see things; you say, 'Why?' But I dream things that never were; and I say 'Why not?