The most important thing in mathematics is to ask the right questions.
在社交领域,用户增长不是目标,而是用户满意度的自然结果。
过去从未死去,它甚至还没有过去。
解释:德行不够优良的人,难以有崇高的信念与理想。才能不够突出的人,难以有渊博的知识和见解。
The true way is along a rope that is not spanned high in the air, but just above the ground. It seems intended more to cause stumbling than to be walked upon.