Here is a good one from the ‘Imitation of Christ’:
"What good is it to live a long life when we amend that life so little? Indeed, a long life does not always benefit us, but on the contrary, frequently adds to our guilt. Would that in this world we had lived well throughout one single day. Many count up the years they have spent in religion but find their lives made little holier. If it is so terrifying to die, it is nevertheless possible that to live longer is more dangerous. Blessed is he who keeps the moment of death ever before his eyes and prepares for it every day.
If you have ever seen a man die, remember that you, too, must go the same way. In the morning consider that you may not live till evening, and when evening comes do not dare to promise yourself the dawn. Be always ready, therefore, and so live that death will never take you unprepared. Many die suddenly and unexpectedly, for in the unexpected hour the Son of God will come. When that last moment arrives you will begin to have a quite different opinion of the life that is now entirely past and you will regret very much that you were so careless and remiss.
How happy and prudent is he who tries now in life to be what he wants to be found in death. Perfect contempt of the world, a lively desire to advance in virtue, a love for discipline, the works of penance, readiness to obey, self-denial, and the endurance of every hardship for the love of Christ, these will give a man great expectations of a happy death."
)
