The entity that gives life and motion to the human body is finer still and lies infinitely beyond the reach of our finest scientific instruments. When this entity deserts the body, the body is like a ship without a rudder - deserted, motionless, dead.

I have better use for my brain than to poison it with alcohol. To put alcohol in the human brain is like putting sand in the bearings of an engine.

I do not believe in the God of the theologians; but that there is a Supreme Intelligence I do not doubt.

The great trouble is that the preachers get the children from six to seven years of age and then it is almost impossible to do anything with them.

I did not fail two thousand times. I merely found two thousand ways not to make a lightbulb.

There is great value in disaster. All our mistakes are burned up. Thank God we can start a new.

There is no subsitute for hard work.