Don't dwell on what went wrong. Instead, focus on what to do next. Spend your energies on moving forward toward finding the answer.

if you don't concentrate on what you are doing then the thing that you are doing is not what you are thinking.

Sometimes abandoning what you’re working on is the right move, even if you’ve already put in a lot of effort. Don’t throw good time after bad work.

I do not like to repeat successes I like to go on to other things.

Do not dwell on what once was, but rather look forward and ponder how you can make the future brighter

Don't think about making art. Just get it done. Let everyone else decide if it's good or bad, whether they love it or hate it. While they're deciding, make even more art.

If the thing you want beyond anything cannot be, it is much better to recognize it and go forward, instead of dwelling on one's regrets and hopes.

For now, make something, learn something, and move on. Or you’ll be buried waist-deep in the big muddy of perfectionism.

Don’t delay acting on a good idea. Chances are someone else has just thought of it, too. Success comes to the one who acts first.

You can’t concentrate on doing anything if you are thinking, “What’s gonna happen if it doesn’t go right?

It does matter what you do. You should focus relentlessly on something you’re good at doing, but before that you must think hard about whether it will be valuable in the future.

When you succeed you party. When you fail you ponder. Greatness comes from pondering.

If then you desire (aim at) such great things, remember that you must not (attempt to) lay hold of them with a small effort; but you must leave alone some things entirely, and postpone others for the present.

Whatever excites you, go do it. Whatever drains you, stop doing it.