Discipline trumps willpower.

We're wired for novelty, but life rewards repetition.  Good ideas are rare. When you find something that works, you've found gold. But instead of mining it, we go looking for more gold. We'd rather have ten ideas that might work than one that does.

Ninety percent of success can be boiled down to consistently doing the obvious thing for an uncommonly long period of time without convincing yourself that you're smarter than you are.

Flashy gets attention. Boring gets results.

The happiest people want the lowest profile.

Excellence isn't about occasional brilliance - it's about consistent execution.

Behind every great achievement lies a long, unseen journey. Results are forged from invisible efforts. That hit song? Years of practice, countless unheard tracks. The championship athlete? Countless hours of unseen training. The successful entrepreneur? Working on a Friday night, again. The invisible advantage is choosing to do what other people could do, but don’t. 

People can't copy discipline.

Everything takes longer and is harder than you think.

Most people quit before they reach their best work.

Excellence lives in doing a bit more than others.

Most of the time, it’s not about having a gift. It’s about having grit. In tennis, like in life, discipline is also a talent. And so is patience. Trusting yourself is a talent. Embracing the process—loving the process—is a talent. Managing your life, managing yourself.These can be talents, too. Some people are born with them. Everybody has to work at them.