Christopher Gilbert

“Jealousy is a disease, love is a healthy condition. The immature mind often mistakes one for the other, or assumes that the greater the love, the greater the jealousy - in fact, they are almost incompatible; one emotion hardly leaves room for the other.”
― Robert A. Heinlein, Stranger in a Strange Land

“Love is that condition in which the happiness of another person is essential to your own.”
― Robert A. Heinlein, Stranger in a Strange Land

“Thinking doesn't pay. Just makes you discontented with what you see around you.”
― Robert A. Heinlein, Stranger in a Strange Land

“The state calls its own violence law, but that of the individual, crime.”
― Max Stirner