Genius is one per cent inspiration, ninety-nine per cent perspiration.
天才等于百分之一的灵感,加百分之九十九的汗水。
对心灵的研究必须是纯粹分析性的。
永远努力在你的生活之上保留一片天空。
The teacher's task is to awaken joy in creative expression and knowledge.
The best fertilizer for any piece of land is the footprints of its owner.