Nothing is easier than self-deceit, since what each man wishes, that he also believes to be true.
The convictions of the multitudes … are sincere convictions. They are, as we know, sometimes disastrously erroneous; but they are also disastrously honest.
Irrationally held truths may be more harmful than reasoned errors.
Nothing is so firmly believed as that which we least know.
There is superstition in science quite as much as there is superstition in theology, and it is all the more dangerous because those suffering from it are profoundly convinced that they are freeing themselves from all superstition.
For a little while, maybe I did fall for my own mythology.
The religions of mankind must be classed among the mass-delusions of this kind. No one, needless to say, who shares a delusion ever recognizes it as such.
