Study and research is like climbing a ladder to climb step by step, to a foot up four or five steps, the ground's day, that must be wrestling.
学习和研究好比爬梯子，要一步一步地往上爬，企图一脚跨上四五步，平地登天，那就必须会摔跤了。——华罗庚。
Study and research is like climbing a ladder to climb step by step, to a foot up four or five steps, the ground's day, that must be wrestling.
学习和研究好比爬梯子，要一步一步地往上爬，企图一脚跨上四五步，平地登天，那就必须会摔跤了。——华罗庚。
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