Prudence, the mother of all virtues. The ability to make decisions based on rational thoughts and reasoning. Making a prudent decision, the thing that makes humans amazing.
The ability to outweigh -in a reasonable span of time- the pros and cons, the requirements and even the consequences (the future!) of a decision is an incredible feat of the mind.
Being prudent is a wonderful thing, as you will seldom have the feeling of having made a bad decision, thought prudence is often confused with cautiousness which some people see as a bad quality. Bad decisions are so harmful to mankind, as it is a truly painful feeling that can in no way be reversed or changed, a pain that can not be comforted without the medicine of time. Decisions made are decisions made, and if said decision was a prudent one happiness and gladness and content ensue.