Necessity, mother of ...

Necessity, mother of invention.
 William Wycherley

Quotes from the same author

Charity and good-nature give a sanction to the most common actions; and pride and ill-nature make our best virtues despicable.
 William Wycherley
Conversation augments pleasure and diminishes pain by our having shares in either; for silent woes are greatest, as silent satisfaction leas; since sometimes our pleasure would be none but for telling of it, and our grief insupportable but for participation.
 William Wycherley
As wit is too hard for power in council, so power is too hard for wit in action.
 William Wycherley
Thy books should, like thy friends, not many be/Yet such wherein men may thy judgment see.
 William Wycherley