Science is what you know, philosophy is what you don't know.

The desire for legitimate offspring is, in fact, according to the Catholic Church, the only motive which can justify sexual intercourse.

Indignation is a submission of our thoughts, but not of our desires.

When we perceive any object of a familiar kind, much of what appears subjectively to be immediately given is really derived from past experience.

More and more people are becoming unable to accept traditional [religious] beliefs. If they think that, apart from these beliefs, there is no reason for kindly behaviour, the results may be needlessly unfortunate. That is why it is important to show that no supernatural reasons are needed to make [people] kind and to prove that only through kindness can the human race achieve happiness.

A hallucination is a fact, not an error; what is erroneous is a judgment based upon it.

How much longer is the world willing to endure this spectacle of wanton cruelty?