The fact that we don't keep repeating tests in the same arena is not because the probability of the hypothesis showing its falsity in other arenas goes up after it has passed tests in one arena. ↗
Do not brood over your past mistakes and failures as this will only fill your mind with grief, regret and depression. Do not repeat them in the future. ↗
I presumably lost $150,000 in the depression of 1937—on my one stock investment—because I did everything Lehman Brothers told me. I said, well, this is a fool’s procedure . . . buying stock in other people’s businesses. ↗