depends what are you doing contemporary. decision are affected by numerous factor, like time, circumstances, family background, peer pressure, ambition, poverty, social status etc. specifically, in my case i look into the bigger picture of how the job i am going to select will serve my ambition along with my family and clan needs. similarly, am i of a little help to humanity or am i contributing something positive for the society, if the answer is yes, then i wont look back over the decision i made. as mentioned above those factors were kept in mind while choosing or making the decision. however, if things does not go as, i or you planned then the lesson is learnt of not going to make same mistakes again.
The purpose of this quote "we choose to go to the moon" is them becoming friends and this affects history as they we're enemies and now they're friends it was an amazing part if history until the Soviet Union raided Afganistan
