Finally, learn something about the history of science, or at a minimum the history of your own branch of science. The least important reason for this is that the history may actually be of some use to you in your own scientific work. Steven Weinberg
Our puny sentimentalism has caused us to forget that a human life is sacred only when it may be of some use to itself and to the world. Helen Keller
I do try to be of some use in the world. I sometimes do volunteer work with kids, and manage to help some people a little, but really making a significant difference can be hard. John Shirley
There is nothing so bad but may be of some use. German Proverb