The world can only be grasped by action, not by contemplation.

The world can only be grasped by action, not by contemplation. The hand is the cutting edge of the mind.

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.

We are all afraid for our confidence, for the future, for the world. That is the nature of the human imagination. Yet every man, every civilization, has gone forward because of its engagement with what it has set itself to do.

Reformation ends not in contemplation, but in action

Power is the by-product of understanding.