Our writing equipment takes part in forming our thoughts.

A refined nature is vexed by knowing that some one owes it thanks, a coarse nature by knowing that it owes thanks to some one.

Morality makes stupid.- Custom represents the experiences of men of earlier times as to what they supposed useful and harmful - but the sense for custom (morality) applies, not to these experiences as such, but to the age, the sanctity, the indiscussability of the custom. And so this feeling is a hindrance to the acquisition of new experiences and the correction of customs: that is to say, morality is a hindrance to the development of new and better customs: it makes stupid.

I'm not upset that you lied to me, I'm upset that from now on I can't believe you.

Once and for all, there are many things I choose not to know.--Wisdom sets limits even to knowledge.

No one can draw more out of things, books included, than he already knows. A man has no ears for that to which experience has given him no access.

Amor Fati – “Love Your Fate”, which is in fact your life.