The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance.

The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance.

Just do what you do best.

Just do what you do best.

It is vain to say human beings ought to be satisfied with tranquillity: they must have action; and they will read more

It is vain to say human beings ought to be satisfied with tranquillity: they must have action; and they will make it if they cannot find it.

I'm comfortable being old... being black... being Jewish.

I'm comfortable being old... being black... being Jewish.

The biggest fool in the world is he who merely does his work supremely well, without attending to appearance.

The biggest fool in the world is he who merely does his work supremely well, without attending to appearance.

The highest qualities of character… must be earned.

The highest qualities of character… must be earned.

There is as much difference between the counsel that a friend giveth, and that a man giveth himself, as there read more

There is as much difference between the counsel that a friend giveth, and that a man giveth himself, as there is between the counsel of a friend and a flatterer.

Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that.

Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that.

Nothing in the world is more haughty than a man of moderate capacity when once raised to power.

Nothing in the world is more haughty than a man of moderate capacity when once raised to power.