“I want to leave the world better than I found it.”
I used to say that, but I've come to appreciate that many things are not within my control. Through no fault of my own and despite my best efforts, the world may very well worsen in the future. Society may be devastated by climate change, nuclear war, artificial intelligence, or social media. Would that be a personal failure? Of course not.
I later settled on alternative wording: I want to leave the world better than it would have been without me. Even that sometimes seems impossible, given my contributions to pollution and my consumption of limited resources, given the number of ants I've inadvertently stepped on, and so on. Still, it seems like a more reasonable goal.
Some time ago, I came up with a little mnemonic to remember how direction of travel affects flight times:
East to west, you'll need rest. West to east, not in the least.
That's right, flying eastbound is faster than flying westbound along a similar route. For example, flying from California to New York takes about 5 hours, but flying from New York to California takes about 6 hours. The difference is not caused by Earth's rotation, but rather the jet streams.
When we don’t engage with our ideological opponents, our arguments weaken and our naivete becomes painfully obvious to them. When we don’t engage with our ideological opponents, we also don't notice this.