What You Plant Now, Will Grow Soon, And Same You will harvest later.
"Always do your best. What you plant now, you will harvest later."
Og Mandino
If this is true, and it indeed is, why then wouldn't a man spend his whole lifetime sowing evergreen seeds all through his life in all places and circumstances he finds himself on earth.
Always do your best to help humanity grow. You will be self-fulfilled in the end.