我认为数学之所以有价值，是因为它具有这种令人难以置信的结构，你可以探索和发现。

Keep all your things visible in a hotel room， not in drawers， and all gathered into one spot. That way you’ll never leave anything behind. If you need to have something like a charger off to the side， place a couple of other large items next to it， because you are less likely to leave 3 items behind than just one.

最热烈的爱会有最冷漠的结局。