All relationships need cultivation. 所有的關係都需要細心栽培耕耘 What we obtain too cheaply we esteem too little,it is dearness only that gives everything its value.得之容易視之鄙蓆得之困難視之鑽石 If two person on the same job agree all the time,then one is useless. If they disagree all the time,then both are useless.