"Once - many, many years ago - I thought I made a wrong decision. Of course, it turned out that I had been right all along. But I was wrong to have thought that I was wrong"

John Foster Dulles' quote speaks to the power of hindsight and the significance of relying on one's own judgement. It recommends that, while it is easy to second-guess ourselves and question our decisions, we need to have faith in our own judgement and not be too hard on ourselves when things don't turn out as anticipated. The quote likewise indicates that, even if we make errors, we can gain from them and use them to make much better decisions in the future. Eventually, it is a reminder that we need to trust our own judgement and not be too tough on ourselves when things don't end up as expected.