君子之交淡如水，小人之交甘若醴。
The friendship of a gentleman is light as water; the friendship of a small person is sweet as honey.
Art is not a handicraft, it is the transmission of feeling the artist has experienced.
出自先秦《荀子·不苟》。君子加强道德修养没有比“诚”更重要的，达到了“诚”的要求也就到了修身养性的最高境界了。