The most savage controversies are about matters as to which there is no good evidence either way.
Man is a credulous animal, and must believe something in the absence of good grounds for belief, he will be satisfied with bad ones.
The infliction of cruelty with a good conscience is a delight to moralists. That is why they invented Hell.
Those who forget good and evil and seek only to know the facts are more likely to achieve good than those who view the world through the distorting medium of their own desires.
I like mathematics because it is not human and has nothing particular to do with this planet or with the whole accidental universe – because, like Spinoza’s God, it won’t love us in return.
The world is full of magical things patiently waiting for our wits to grow sharper.
Freedom in general may be defined as the absence of obstacles to the realization of desires.