Humanities education is the worst thing for an industrialist.

He that cannot reason is a fool.

Not evil, but good, has come to the race from the accumulation of wealth by those who have the ability and energy that produce it.

If you want to be happy, set a goal that commands your thoughts, liberates your energy, and inspires your hopes.

The man who acquires the ability to take full possession of his own mind may take possession of anything else to which he is justly entitled.

The more difficult a problem becomes, the more interesting it is.

I have had a long, long life full of troubles, but there is one curious fact about them-nine-tenths of them never happened.