A man becomes a philosopher by reason of a certain perplexity, from which he seeks to free himself.

Materialism is the philosophy of the subject who forgets to take account of himself.

To repeat abstractly, universally, and distinctly in concepts the whole inner nature of the world , and thus to deposit it as a reflected image in permanent concepts always ready for the faculty of reason , this and nothing else is philosophy.

Animals learn death first at the moment of death;...man approaches death with the knowledge it is closer every hour, and this creates a feeling of uncertainty over his life, even for him who forgets in the business of life that annihilation is awaiting him. It is for this reason chiefly that we have philosophy and religion.