Study: concentration of the mind on whatever will ultimately put something in your pocket.

Insomnia never comes to a man who has to get up exactly at six o'clock. Insomnia troubles only those who can sleep any time.

Real life is in love, laughter, and work.

If I supply you with a thought, you may remember it and you may not. But if I can make you think a thought for yourself, I have indeed added to your stature.

Dogma is a lie reiterated and authoritatively injected into the mind of one or more persons who believe that they believe what someone else believes.

When certain unmarried men, who had lost their capacity to sin, sat indoors, breathing bad air, and passed resolutions about what was right and what wrong, making rules for the guidance of the people, instead of trusting to the natural, happy instincts of the individual, they ushered in the Dark Ages. These are the gentlemen who blocked human evolution absolutely for a thousand years.

Do not dump your woes upon people — keep the sad story of your life to yourself. Troubles grow by recounting them.