What are the most important lessons you’ve learned in life?

Take risks.
Externalize memory.
Nearly every decision in the real world has tradeoffs.
Most people are nice, but may do dumb and regrettable things in the heat of the moment; it helps to remind yourself to think about what you *really* want.
But a few people are actually malicious, possibly in subtle ways.
Many rules are made by humans and can be bent by humans. It's extremely difficult to write rules with no false negatives or false positives, and humans can understand the intent and make exceptions. If in doubt, ask (politely). Relatedly, excessive rules-lawyering is one tool to be subtly malicious.

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