Intelligence is the ability to adapt to change.

Intelligence is the ability to adapt to change.

You have to be smart. The easy days are over.

You have to be smart. The easy days are over.

The sum of intelligence on the planet is a constant; the population is growing.

The sum of intelligence on the planet is a constant; the population is growing.

Be smarter than other people, just don't tell them so.

Be smarter than other people, just don't tell them so.

The mind is not a vessel to be filled but a fire to be kindled.

The mind is not a vessel to be filled but a fire to be kindled.

It is the mark of a truly intelligent person to be moved by statistics.

It is the mark of a truly intelligent person to be moved by statistics.

Character is higher than intellect. A great soul will be strong to live as well as think.

Character is higher than intellect. A great soul will be strong to live as well as think.

There are some ideas so wrong that only a very intelligent person could believe in them.

There are some ideas so wrong that only a very intelligent person could believe in them.

All intelligent thoughts have already been thought; what is necessary is only to try to think them again.

All intelligent thoughts have already been thought; what is necessary is only to try to think them again.