I've read this long transcript of a speech given by Richard Hamming:
It was an amazingly good speech in my view, and extremely interesting.
So my question is: Do you know of more articles like this? Articles or transcripts of speeches by successful scientists giving their life's wisdom and advice in condensed form? I've read a lot of philosophy and history of science, and while that is very interesting, supplementing it with more practical insights by scientists (rather than philosophers or historians of science) is helpful.