What is the nature of life? What is the nature of time? Those two questions may be difficult to answer scientifically even by an adult. The author used two short conversations with his granddaughter Emma at 7 years of age to let those perceptions be expressed interestingly. The aim of those two dialogs is to give children a rudimentary knowledge on those topics and to induce their curiosity to pursue Biology, Physics, Evolution and Philosophy. Two short poems are attached. They are lyrics of two songs: One for Mother's Day and another for Father's Day. Those naive words express children's love to their parents, which could be used for printing greeting cards that kids wish to send out for mother's birthday and father's birthday. The book was written in English and Chinese dual language, which can be used as a supplemental material for learning Chinese by western people. 什么是生命的本质?什么是时间的本质?也许那两个问题由成人科学地回答也难甚。作者使用他与7岁孙女埃玛的两次短短的交谈. 让那些问题悟性有趣被表达。 那两对话将致他们追求生物、物理、進化和哲学的求知欲。附上母亲节和父亲节的两首短诗。用英语和汉语双重语言书写。
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