Terry Crews at around 45-minutes into his interview with Tim Ferriss:
In order to do, you have to be.
You are what you are now. There is only now. This is all you have.
These quotes from Terry Crews have been burned into my brain ever since I listened to the podcast episode at the beginning of the year. The more you meditate on what he says the more you'll understand it isn't simply a clichéd saying, but reality. Go and listen to the entire thing but especially 45-minutes to 49-minutes.