Personally, I really liked these ones by Sam Altman:
http://blog.samaltman.com/how-to-be-successful
https://blog.samaltman.com/the-days-are-long-but-the-decades-are-short
http://blog.samaltman.com/productivity
http://blog.samaltman.com/how-to-be-successful
https://blog.samaltman.com/the-days-are-long-but-the-decades-are-short
http://blog.samaltman.com/productivity