A great many people think they are thinking when they are merely rearranging their prejudices.

There is only one thing a philosopher can be relied upon to do, and that is to contradict other philosophers.

He who refuses to embrace a unique opportunity loses the prize as surely as if he had failed.

The community stagnates without the impulse of the individual. The impulse dies away without the sympathy of the community.

The great use of life is to spend it for something that will outlast it.

This life is worth living, we can say, since it is what we make it.

I believe there is no source of deception in the investigation of nature which can compare with a fixed belief that certain kinds of phenomena are impossible.

Most people never run far enough on their first wind to find out they?ve got a second. Give your dreams all you?ve got and you?ll be amazed at the energy that comes out of you!!