There comes a time when a man must spit on his hands, hoist the black flag and begin slitting throats.

Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats.

Conscience is a mother-in-law whose visit never ends.

Conscience is the inner voice that warns us somebody may be looking.

Any man who afflicts the human race with ideas must be prepared to see them misunderstood.

The one permanent emotion of the inferior man is fear – fear of the unknown, the complex, the inexplicable. What he wants beyond everything else is safety.

It is now quite lawful for a Catholic woman to avoid pregnancy by a resort to mathematics, though she is still forbidden to resort to physics or chemistry.