Live so that thou mayest desire to live again - that is thy duty - for in any case thou wilt live again!

Science and art have that in common that everyday things seem to them new and attractive.

The value of a thing sometimes lies not in what one attains with it, but in what one pays for it - what it costs us

One must learn to be a sponge if one wants to be loved by hearts that overflow.

The earth has a skin and that skin has diseases; one of its diseases is called man.

A man who wills commands something within himself that renders obedience, or that he believes renders obedience.

The dyed-in-the-wool teacher takes everything seriously only with respect to his students--himself included.