If you limit your goals to what you know you can achieve, you are setting the bar way too low.

For most of us the problem isn’t that we aim too high and fail - it’s just the opposite - we aim too low and succeed.

Most people fail in life not because they aim too high and miss, but because they aim too low and hit.

The greatest danger for most of us is not that our aim is too high and we miss it, but that it is too low and we reach it.

Losers change their goals because they’re too lazy to change themselves.

But we can aim too high. Or too low. Or too chaotically. So we fail and live in disappointment, even when we appear to others to be living well.

The greater danger for most of us lies not in setting our aim too high and falling short; but in setting our aim too low, and achieving our mark.

The reason most people never reach their goals is that they don't define them, or ever seriously consider them as achievable.

a bunch of high-IQ people with the wrong kind of ambition won’t work.

The reason most people never reach their goals is that they don’t define them, or ever seriously consider them as believable or achievable. Winners can tell you where they are going, what they plan to do along the way, and who will be sharing the adventure with them.

With ambition, you tend to get one step below what you aim for. So unless you try to be the best, you won't even be good.

A successful individual typically sets his next goal somewhat but not too much above his last achievement. In this way he steadily raises his level of aspiration... The unsuccessful individual on the other hand, tends to show one of two reactions: he sets his goal very low, frequently below his past achievement... or he sets his goals far above his abilities.

All who strive to live for something beyond mere selfish aims find their capacities for doing good very inadequate to their aspirations. They do so much less than they want to do, and so much less than they, at the outset, expected to do, that their lives, viewed retrospectively, inevitably look like failure.

We habitually settle for less than our best; at work, in school, in our relationships, and on the playing field or race course.