病毒的复杂性提醒我们,关于生物学我们还有很多需要学习。
The writer must be a person who is willing to be alone.
Intelligence plus character – that is the goal of real education.
The great question which, in all ages, has disturbed mankind, and brought on them the greatest part of their mischiefs, has been, not whether there be power in the world, nor whence it came, but who should have it.
In the middle of difficulty lies opportunity.