Time

"A schedule defends from chaos and whim. It is a net for catching days. It is a scaffolding on which a worker can stand and labor with both hands at sections of time."
-Anne Dillard

"Dost thou love life? Then do not squander time, for that's the stuff life is made of."
-Benjamin Franklin, from Poor Richard's Almanac

"I confess, I do not believe in time."
-Vladimir Nabokov, Speak Memory