Or shall I go out as a light does, not first blown out by the wind, but grown tired and weary of itself - a burnt out light? Or finally, shall I blow myself out, so as not to burn out?

Every talent must unfold itself in fighting.

Let that day be lost to us on which we did not dance once!

Only the most acute and active animals are capable of boredom.

Mathematics is merely the means to a general and ultimate knowledge of man.

Every power draws its ultimate consequences at every moment.

Just as a waterfall grows slower and more lightly suspended as it plunges down, so the great man of action tends to act with greater calmness than his tempestuous desires prior to the deed would lead one to expect.