Science may set limits to knowledge, but should not set limits to imagination.   

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

Look and you shall find it; for what is unsought will go unseen.

When you change the way you look at things, the things you look at change.

When you change the way you think, you will change the way you feel. When you change the way you feel, you will change the way you act. When you change the way you act, you will change the way you live. When you change the way you live, you will change your world.

He is a wise man who does not grieve for the things which he has not, but rejoices for those which he has.

  Life is 10 percent what you make it, and 90 percent how you take it.