The finished man, you know, is difficult to please; a growing mind will ever show you gratitude. --Faust 1, lines 182-3

Man would not be the finest creature in the world if he were not too fine for it.

There is no permanence in doubt; it incites the mind to closer inquiry and experiment, from which, if rightly managed, certainty proceeds, and in this alone can man find thorough satisfaction.

All truths are old, and all that we have to do is recognize and utter them anew.

There speaks the man of truly noble ways, Who will not listen to the words of praise. In modesty averse, and with deaf ears, He acts as though the others were his peers.

Thinking is more interesting than knowing, but less interesting than looking.

Someday perhaps the inner light will shine forth from us, and the we'll need no other light.