Courage is the most important of all the virtues because without courage, you can't practice any other virtue consistently.

The ladder of success is best climbed by stepping on the rungs of opportunity.

Architecture should speak of its time and place, but yearn for timelessness.

The personal example of a teacher is the most useful sunshine that nothing can replace for the soul of young people.

出自春秋·鲁·孔子《论语》。孔子杜绝了四种弊病，不妄意，不妄下决断，不固执，不以自我为中心。