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

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

If the human brain were so simple that we could understand it, we would be so simple that we couldn't.

If the human brain were so simple that we could understand it, we would be so simple that we couldn't.

I can't tell you if genius is hereditary, because heaven has granted me no offspring.

I can't tell you if genius is hereditary, because heaven has granted me no offspring.

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.

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.

Your intellect may be confused, but your emotions will never lie to you.

Your intellect may be confused, but your emotions will never lie to you.

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.

An intelligent man is sometimes forced to be drunk to spend time with his fools.

An intelligent man is sometimes forced to be drunk to spend time with his fools.

I must have a prodigious quantity of mind; it takes me as much as a week sometimes to make it read more

I must have a prodigious quantity of mind; it takes me as much as a week sometimes to make it up.