Even if it is indifferent to human desires, as it seems to be; if human life is a passing episode, hardly noticeable in the vastness of cosmic processes; if there is no superhuman purpose, and no hope of ultimate salvation, it is better to know and acknowledge this truth than to endeavor, in futile self-assertion, to order the universe to be what we find comfortable.

Reason may be a small force, but it is constant, and works always in one direction, while the forces of unreason destroy one another in futile strife.

The harm that theology has done is not to create cruel impulses, but to give them the sanction of what professes to be lofty ethic, and to confer an apparently sacred character upon practices which have come down from more ignorant and barbarous times.

When you are studying any matter or considering any philosophy, ask yourself only: what are the facts, and what is the truth that the facts bear out. Never let yourself be diverted by what you wish to believe, but look only and surely at what are the facts.

The secrets to happiness include enterprise, exploration of one's interests and the overcoming of obstacles.

How about Pithecanthropus Erectus? Was it really he who ate the apple? Or was it Homo Pekiniensis?

The road to happiness and prosperity lies in an organized diminution of work.