Obviousness is always the enemy of correctness.

If you wish to be happy yourself, you must resign yourself to seeing others also happy.

I wish to propose for the reader's favourable consideration a doctrine which may, I fear, appear wildly paradoxical and subversive. The doctrine in question is this: that it is undesirable to believe a proposition when there is no ground whatever for supposing it true.

Nothing is so exhausting as indecision, and nothing is so futile.

With the introduction of agriculture mankind entered upon a long period of meanness, misery, and madness, from which they are only now being freed by the beneficent operation of the machine.

Ideas and principles that do harm are as a rule, though not always, cloaks for evil passions.

Remote from human passions, remote even from the pitiful facts of nature, the generations have gradually created an ordered cosmos [mathematics], where pure thought can dwell in its natural home.