Opportunities will not overlook you because you are wearing overalls.

The secret of success is to understand the viewpoint of others.

The whole secret of a successful life is to find out what is one's destiny to do, and then do it.

If you need a machine and don't buy it, then you will ultimately find that you have paid for it and don't have it.

The time is coming when man will be able to determine the length of his lifespan by controlling his diet.

The time will come when man will know even what is going on in the other planets and perhaps be able to visit them.

Don't find fault, find a remedy.