People are very open-minded about new things - as long as they're exactly like the old ones.

Modern psychology teaches that experience is not merely the best teacher, but the only possible teacher.. There is no war between theory and practice. The most valuable experience demands both, and the theory should supplement the practice and not precede it.

If a fellow wants to be nobody in the business world, let him neglect sending the mailman to somebody on his behalf.

Keep on going and the chances are you will stumble on something, perhaps when you are least expecting it. I have never heard of anyone stumbling on something sitting down.

The Wright brothers flew right through the smoke screen of impossibility.

You can send a message around the world in one-fifth of a second, yet it may take years for it to get from the outside of a man's head to the inside.

The sure ways to create new ventures of discovery are to keep an open mind.