父亲不慈爱，子女就不会孝顺；兄长不友爱，弟弟就不会恭敬；丈夫不仁义，妻子就不会顺从。
In the long history of humankind (and animal kind, too) those who learned to collaborate and improvise most effectively have prevailed.
The only meaningful way to study learning is through objective measurement.
赏析：描述了人在梦中不知道自己在做梦，醒来后才知道是梦的现象，引发了对人生如梦的思考。
《三民主义·民权主义·第一讲》（1924年3月9日）
"The past is always tense, the future perfect."
"We are all haunted by something."
True progress comes when industry and environmentalists work together, not against each other.
This is the best time ever to make something. None of the greatest， coolest creations 20 years from now have been invented yet. You are not late.