为了成为一名好老师,教育者必须是一位心理学家。
事实上,在美国,犹太人是非犹太人想象中的虚构人物。
What has destroyed every previous civilization has been the tendency to the unequal distribution of wealth and power.
宇宙用数学的语言说话,而我们是它谦逊的诠释者。