Tut, tut DanB. Referencing!
It should of course read:
"A good heart these days is hard to find, so please be gentle with this heart of mine." (Sharkey, 1985)
And on the topic of great scientific contributions, let us not forget words of wisdom to help PhDers everywhere:
"When the going gets tough, the tough get going." (Ocean, 1986)
Anyone any other great lyrical quotes to help us through life?