About what we neither know nor feel precisely while awake-whether we have a good or a bad conscience toward a certain person-our dreams instruct us fully and unambiguously.
There are people who are so presumptuous that they know no other way to praise a greatness that they publicly admire than by representing it as a preliminary stage and bridge leading to themselves.
I call Christianity the one great curse, the one great intrinsic depravity, and the one great instinct of revenge, for which no means are venomous enough, or secret, subterranean and small enough - I call it the one immortal blemish on the human race.
It is so little true that martyrs offer any support to the truth of a cause that I am inclined to deny that any martyr has ever had anything to do with the truth at all.
The refinement of morality increases together with the refinement of fear. Today the fear of disagreeable feelings in other people is almost the strongest of our own disagreeable feelings.