"Why doesn't constant trampling defeat the dandelion? The key to its strength is its long and sturdy root, which extends deep into the earth. The same priciple applies to people. The true victors in life are those who, enduring repeated challenges and setbacks, have sent the roots of their being to such a depth that nothing can shake them."

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It was one time when people thought the value of the fine structure constant was important. Now of course it's still important, of course, as a practical matter,but we now know that the value it has is a function, that in any fundamental theory you derive the fine structure constant as a function of all sorts of mass ratios and so on and it's not really that fundamental.

— Steven Weinberg