Authors:

People can be really smart or have skills that are directly applicable, but if they don't really believe in it, then they are not going to really work hard.

"10 Mark Zuckerberg Quotes That Show Why He's Been So Successful" by Jason Fell, www.businessinsider.com. May 14, 2014.
People can be really smart or have skills that are directly applicable, but if they don't really believe in it, then they are not going to really work hard.