To signal an emergency， use the rule of three； 3 shouts， 3 horn blasts， or 3 whistles.

孤独并不是来自身边无人。感到孤独的真正原因是因为一个人无法与他人交流对其最要紧的感受。

Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

失败只是通往成功的垫脚石。

灵魂会被思想的颜色所浸染。