There's a time for all things.

Time is the nurse and breeder of all good.

Defer no time, delays have dangerous ends.

Time ... thou ceaseless lackey to eternity.

You've gotta keep control of your time, and you can't unless you say no. You can't let people set your agenda in life.

Time perfects all living beings as well as kills them; it alone is awake when all others are asleep. Time is insurmountable.