Famous people feel that they must perpetually be on the crest of the wave, not realising that it is against all the rules of life. You can't be on top all the time, it isn't natural.
“I have two children and they're young yet but all of the children that I know really inspire me.”
“Both of these branches of evolutionary science, are, in my opinion, in the closest causal connection; this arises from the reciprocal action of the laws of heredity and adaptation.”