Toil of science swells the wealth of art.

A sublime soul can rise to all kinds of greatness, but by an effort; it can tear itself from all bondage, to all that limits and constrains it, but only by strength of will. Consequently the sublime soul is only free by broken efforts.

Great souls suffer in silence.

Satisfied if they themselves can escape from the hard labour of thought, they willingly abandon to others the guardianship of their thoughts.

I know that we often tremble at an empty terror; yet the false fancy brings a real misery.

Mankind is made great or little by its own will.

You worthy critics, or whatever you may call yourselves, are ashamed or afraid of the momentary and passing madness which is found in all real creators, the longer or shorter duration of which distinguishes the thinking artist from the dreamer. Hence your complaints of unfruitfulness, for you reject too soon and discriminate too severely.