Your reputation is harmed the most by what you say to defend it.
We tend to use knowledge as therapy.
To become a philosopher, start by walking very slowly.
Answer e-mails from junior people before more senior ones. Junior people have further to go and tend to remember who slighted them.
What I learned on my own I still remember
I don't know anyone on Wall Street who goes to work every day thinking of anything but how to increase their bonus.