Potential or Achievement - Whats More Important

Lets me begin with defining two terms as I perceive it to be

Potential – It is the ability perceived in a person to achieve something. Whether he/she will achieve it is a question.

Achievement – It something done or got by a person (whether he had the potential to get or do that is a different thing).

Whats more important.

Potential or Achievement .

Potential could be an Achievement in the future .

But I read a statement some where it said – There is nothing more common in the world than talented failures.

Achievement is something which is done in the past. It’s done.

But one successful thing does not lead to other .

There is nothing faster forgotten than a good achievement .

Failures are more remembered than success . Cricketers being the best e .g .

One bad performance and done .

So what important Potential or Achievements .

Don’t tell me Potetial which leads to Achievement which Obviously is the Best .