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

Out of intense complexities intense simplicities emerge.

I don't know who my grandfather was; I'm much more concerned to know what his grandson will be.

Once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return.

A goal is not always meant to be reached, it often serves simply as something to aim at.

It's not what you look at that matters, it's what you see.

The greatest accomplishment is not in never falling, but in rising again after you fall.

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

Argue not concerning God,re-examine all that you have been told at church or school or in any book, dismiss whatever insults your soul

I don't think necessity is the mother of invention. Invention ... arises directly from idleness, possibly also from laziness. To save oneself trouble.

Do what you can, with what you have, where you are.

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

Failure is not our only punishment for laziness; there is also the success of others.

It's all to do with the training: you can do a lot if you're properly trained.

When you're curious, you find lots of interesting things to do.

Man needs his difficulties because they are necessary to enjoy success.

Whatever lifts the corners of your mouth, trust that.

Don't fear failure. Not failure, but low aim, is the crime. In great attempts it is glorious even to fail.

We are what our thoughts have made us; so take care about what you think. Words are secondary. Thoughts live; they travel far.

The desire to reach for the stars is ambitious. The desire to reach hearts is wise.

Yesterday is gone. Tomorrow has not yet come. We have only today. Let us begin.