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.

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.

To educate the intelligence is to expand the horizon of its wants and desires.

To educate the intelligence is to expand the horizon of its wants and desires.

The emotional brain responds to an event more quickly than the thinking brain.

The emotional brain responds to an event more quickly than the thinking brain.

Man becomes man only by his intelligence, but he is man only by his heart.

Man becomes man only by his intelligence, but he is man only by his heart.

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.

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.

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 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.