An important scientific innovation rarely makes its way by gradually winning over and converting its opponents: it rarely happens that Saul becomes Paul. What does happen is that its opponents gradually die out, and that the growing generation is familiarized with the ideas from the beginning: another instance of the fact that the future lies with the youth.

-- Planck's Principle

A person who has not made his great contribution to science before the age of thirty will never do so

-- Albert Einstein

I'm entertained to note that Planck can be said to have made his breakthrough (black-body radiation) in 1894, age 36. But why let facts get in the way of a good story? ;-)