Each bird must sing with his own throat.

I believe that, before all else, I'm a human being, no less than you.

Different people have different duties assigned them by Nature; Nature has given one the power or the desire to do this, the other that. Each bird must sing with his own throat.

The man whom God wills to slay in the struggle of life - he first individualizes.

To see one's goal and to drive toward it, steeling one's heart, is most uplifting.

It is inexcusable for scientists to torture animals; let them make their experiments on journalists and politicians.

The great secret of power is never to will to do more than you can accomplish.