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.

I not only use all the brains that I have, but all that I can borrow.

I not only use all the brains that I have, but all that I can borrow.

What a distressing contrast there is between the radiant intelligence of the child and the feeble mentality of the average read more

What a distressing contrast there is between the radiant intelligence of the child and the feeble mentality of the average adult.

Happiness in intelligent people is the rarest thing I know.

Happiness in intelligent people is the rarest thing I know.

It is good to rub and polish our brain against that of others.

It is good to rub and polish our brain against that of others.

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 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.

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

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

A person must have a certain amount of intelligent ignorance to get anywhere.

A person must have a certain amount of intelligent ignorance to get anywhere.