反射是神经活动最简单和最常见的形式。
科学的力量在于它的普遍性和无私性,它超越了国界和文化的限制。
The poet is a man who can turn the ordinary into the extraordinary.
The only limits you have are the ones you set for yourself.
统计假设检验是一个古老的问题,但其现代处理始于内曼和皮尔逊的工作。
The artist must be a dancer of the invisible.