Anxiety is essential to the human condition. The confrontation with anxiety can relieve us from boredom, sharpen the sensitivity and assure the presence of tension that is necessary to preserve human existence.

智慧来自于经验的积累和对这些经验的反思。

理论与观测之间的相互作用推动了天体物理学的发展。

The ability to associate depends, in turn, on the degree to which communities share norms and values and are able to subordinate individual interests to those of larger groups.