What's gone will never come back, but it exists when you think of it.

Have no fear for atomic energy, 'cause none of them can stop the time.

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

Time and money are largely interchangeable terms.

O Time, thou that consumest all things! O envious age, whereby all things are consumed!

A man who dares to waste one hour of time has not discovered the value of life.