Do ask yourself why you, the individual, exist, and if you can get no other answer try for once to justify the meaning of your existence as it were a posteriori by setting before yourself an aim, a goal, a 'to this end', an exalted and noble 'to this end'.

What does it matter whether I am shown to be right! I am right too much!--And he who laughs best today will also laugh last.

The snake that cannot shed its skin perishes.

Higher than "thou shalt" stands "I will" (the heroes), and higher than "I will" stands "I am" (the Greek gods).

The truth is ugly: we have art so as not to perish from the truth.

The so called unconscious inferences can be traced back to the all-preserving memory, which presents us with parallel experiences and hence already knows the consequences of an action. It is not anticipation of the effects; rather, it is the feeling: identical causes, identical effects . . .

All I need is a sheet of paper and something to write with, and then I can turn the world upside down.