To give and take, or to receive and give back are like the two pans of a scale. When you take or receive, you must give something in return to restore balance.
And even if you are not given anything, give! Why? Because that way you trigger a movement, and you receive something in return.
If you really want something good to remain of your time on Earth, make a habit of giving.
Look at a natural spring: animals come to drink there, trees and plants grow beside it, and humans build their homes nearby, because it keeps giving the pure water it receives from the summit to one and all. The spring teaches us that the only one true method for creating and sustaining life is to give, give what is best in our heart and soul.
It is by becoming a spring that we obtain true wealth. We only truly possess what we are able to give.