画鬼魅易，画狗马难。
【释义】画妖魔鬼怪容易，画狗和马却很难。
我们能培育的最有价值的作物是下一代农民。
The friend who holds your hand and says the wrong thing is made of dearer stuff than the one who stays away.
艺术家必须学会观察、感受和思考。