In the eyes of many people, giving doesn't count unless it's completely selfless. In reality, though, giving isn't sustainable when it's completely selfless.

If you want to find out if someone's a taker, it's not actually that useful to know what they've accomplished. What you want to want to know is how they explain them.

Successful givers secure their oxygen masks before coming to the assistance of others. Although their motives may be less purely altruistic, their actions prove more altruistic, because they give more.

Adam Grant Quotes