“Life is not so short but that there is always time enough for courtesy.”

“Knowledge is immense and life is short: therefore it is not obligatory to learn all the sciences, such as Astronomy and Medicine, and Arithmetic, etc., but only so much of each as bears upon the religious law: enough astronomy to know the times (of prayer) in the night, enough medicine to abstain from what is injurious, enough arithmetic to understand the division of inheritances and to calculate the duration of the Iddat.”

“Wasting time is one of the worst faults of the world. Life is so short, every moment is so precious and yet, we live as if life will never end.”

“Life is short, but it's long enough to ruin any man who wants to be ruined.”

“I wish life was not so short," he thought. "Languages take such a time, and so do all the things one wants to know about.”

“There is never enough time to do everything, but there is always enough time to do the most important thing.”

“Life is too short, Harry. And there's nowhere near enough joy in it. If you find it, grab it. Before it's gone.”

“No life is short that gives a man time to slay himself.”
Vita brevis nulli superest qui tempus in illa quaerendae sibi mortis habet.

“Life is too short to waste time on books that end badly”

“Is not life a hundred times too short for us— to bore ourselves?”