Engineering is about solving problems, not just making things look pretty.

The only limit to our realization of tomorrow is our doubts of today.

戒酗酒，酗酒伤神；戒色欲，贪色灭精神；戒美味，美味使精神昏沉；戒过饱，过饱使精神郁闷；戒多动，多动使精神混乱；戒多话，多话损伤精神；戒多忧，多忧使精神郁结；戒多思，思虑多刺激精神；戒久睡，久睡使精神疲倦；戒久读，久读使精神苦劳。

在旧制度下，努力工作意味着长时间工作、很少休息和低工资。在新制度下，它意味着公平的工作换取公平的报酬。