出自先秦《荀子·劝学》。定居一定要选择适当的邻里,交游一定要接近贤士。说明要加强道德修养,就应该注意周围环境。
孔子说:“父母在世时,不要走远,必须远走时,一定要留下准确的地址。”
一本书就是你手中握着的梦想。
The details are not the details. They make the design.
It is India that gave us the ingenious method of expressing all numbers by means of ten symbols, each symbol receiving a value of position as well as an absolute value.