That which we persist in doing becomes easier for us to do; not that the nature of the thing itself is changed, but that our power to do is increased

Vigor is contagious, and whatever makes us either think or feel strongly adds to our power and enlarges our field of action

Do the thing and you will have the power.

The task ahead of us is never as great as the power behind us.

For if in any manner we can stimulate this instinct, new passages are opened for us into nature, the mind flows into and through things hardest and highest, and the metamorphosis is possible

To map out a course of action and follow it to an end requires courage