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.

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.

Continuous effort - not strength or intelligence - is the key to unlocking our potential

Continuous effort - not strength or intelligence - is the key to unlocking our potential

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.

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.

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.

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.

Be as smart as you can, but remember that it is always better to be wise than to be smart.

Be as smart as you can, but remember that it is always better to be wise than to be smart.