Mathematics is the language of the universe, and through it, we can unlock the secrets of existence.
The inflationary universe model provides a possible explanation for the origin of the universe.
唯一好的教学是那种走在发展前面并引导发展的教学。
Quality is free. It's not a gift, but it's free. What costs money are the unquality things -- all the actions that involve not doing jobs right the first time.
To the man with only a hammer, every problem looks like a nail.