Only through destroying myself can I discover the greater power of my spirit.

Fame and power are the objects of all men. Even their partial fruition is gained by very few and that, too, at the expense of social pleasure, health, conscience, life.

Real politics are the possession and distribution of power.

I think that the power is the principle. The principle of moving forward, as though you have the confidence to move forward, eventually gives you confidence when you look back and see what you've done.

The principle of all successful effort is to try to do not what is absolutely the best, but what is easily within our power, and suited for our temperament and condition.

The more extensive a man's knowledge of what has been done, the greater will be his power of knowing what to do.

The reward of one duty is the power to fulfill another.

When it is not in our power to follow what is true, we ought to follow what is most probable.

The strength and power of a country depends absolutely on the quantity of good men and women in it.

The struggle for existence holds as much in the intellectual as in the physical world. A theory is a species of thinking, and its right to exist is coextensive with its power of resisting extinction by its rivals.