Nature is pleased with simplicity. And nature is no dummy - Isaac Newton

"I can calculate the motion of heavenly bodies but not the madness of people."

"Errors are not in the art but in the artificers."

"What goes up must come down."

"Les hommes construisent trop de murs et pas assez de ponts."

"Truth is ever to be found in the simplicity, and not in the multiplicity and confusion of things."