心灵不过是人类经验的总和，从依赖于经验个体的角度来考虑。
The mind is nothing but the sum total of human experience considered from the standpoint of dependence upon the experiencing individual.
The success of an enterprise depends not only on the external environment but also on internal management.
The fundamental fact about all of us is that we're alive for a while but will die before long.
Time has no divisions to mark its passage, there is never a thunderstorm or blare of trumpets to announce the beginning of a new month or year.