我们表现得好像舒适和奢华是生活的主要需求,而其实让我们快乐的唯一需要是有点热情。
可持续性不是一种选择,而是我们对后代的责任。
The goal of mathematics is to understand the patterns of the universe.
It will take about a thousand million million million million years for the Earth to run into the sun, so there’s no immediate cause for worry!