Give away everything you know, and more will come back to you.
You will remember from school other students preventing you from seeing their answers by placing their arm around their exercise book or exam paper. It is the same at work, people are secretive with ideas. ‘Don’t tell them that, they’ll take the credit for it.’
The problem with hoarding is you end up living off your reserves. Eventually you’ll become stale. If you give away everything you have, you are left with nothing. This forces you to look, to be aware, to replenish.