Time conquers all, and we must time obey.
Among the things Billy Pilgrim could not change were the past, the present, and the future.
Time perfects all living beings as well as kills them; it alone is awake when all others are asleep. Time is insurmountable.
As long as there's such a thing as time, everybody's damaged in the end, changed into something else. It always happens, sooner or later.
All the tragedies which we can imagine return in the end to the one and only tragedy: the passage of time.
We do things when it is our time to do them. They do not occur to us until it is time; they cannot be resisted, once their time has come. It's a question of time, not motive.
How soon will time cover all things.
But I intend to enjoy the weeks I have left with you to the fullest. Because I know from my study of the philosophy of time, whatever is going to happen in the future is already unavoidable.
Nothing 'gainst Times scythe can make defence.