I have always considered that the true test of a machine is its practical utility in the hands of the common laborer.
Innovation doesn't happen by accident; it requires intentional investment in people and ideas.
释义:身体没有受到饥饿和寒冷的痛苦,这是上天不曾亏待我;若是我的学问无所进步,我有何颜面去面对上天呢?
我们知道得越多,理解得越少。