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From the Military School of Life……Whatever doesn’t kill me…..Makes me stronger.*
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In the theoretical sense; yes, if it is only mental setbacks that you can recover from. Physical damage and Mental damage to the point of no return can take years…..but after that you become more knowledgeable and able to navigate life better to a certain paranoid extent.
Like the saying goes…..Fool me once, shame on you; Fool me twice; shame on me. And I’ll add fool me thrice, I’m the fool.
So, theoretically this saying is true; however, in real life I’m not sure that it makes you stronger, maybe, just a little more wise.