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Have a heart that never hardens, and a temper that never tires, and a touch that never hurts.
保持一颗永不僵硬的心,一种永不疲倦的性情,以及一种永不伤人的态度。
"Hope is a fragile thing, but it is also the most powerful force we have."
Experiments on plant hybridization require the most careful attention and great patience.