I think that much of the advice given to young men about saving money is wrong. I never saved a cent until I was forty years old. I invested in myself - in study, in mastering my tools, in preparation. Many a man who is putting a few dollars a week into the bank would do much better to put it into himself.

Wealth is nothing more or less than a tool to do things with. It is like the fuel that runs the furnace or the belt that runs the wheel - only a means to an end.

Thinking is the hardest work we do.

Anyone who stops learning is old — whether this happens at twenty or at eighty. Anyone who keeps on learning not only remains young but becomes constantly more valuable — regardless of physical capacity.

The man who has the largest capacity for work and thought is the man who is bound to succeed.

A business which can bring itself to the point where it attracts the attention of money should be able to continue on its own feet without being financed.

To do more for the world than the world does for you - that is success.