Real power does not consist in the ability to inflict capital punishment upon the subjects, but in the will and the ability to protect the subjects against the world.
I ... must continue to strive for more knowledge and more power, though the new knowledge always contradicts the old and the new power is the destruction of the fools who misuse it.
Brave, bold men, these are what we want. What we want is vigour in the blood, strength in the nerves, iron muscles and nerves of steel, not softening namby-pamby ideas.
Thought is like a bubble rising to the surface. When thought is joined to will, we call it power. That which strikes the sick person whom you are trying to help is not thought, but power.