Natural philosophers then took these and identified the active chemicals inside.

自然哲学家们随后鉴定出了其中的活性成分。

Only fragments have survived of what the natural philosophers said and wrote.

这些自然派哲学家的论述，至今只留下断简残篇。

The natural philosophers are also called the pre-Socratics, because they lived before Socrates.

自然派的哲学家也被称为“苏格拉底之前的哲学家”，因为他们生在苏格拉底之前。

I refer to the natural philosophers and their decisive break with the mythological world picture.

我曾提到自然派的哲学理论以及人类后来完全摒弃神话式世界观的事情。

Today you are going to hear about the last of the great natural philosophers.

今天我们将谈到最后一位伟大的自然派哲学家。

She read about the Greek natural philosophers.

她阅读了有关希腊自然哲学家的文章。

The earliest Greek philosophers are sometimes called natural philosophers because they were mainly concerned with the natural world and its processes.

最早的希腊哲学家有时被称为“自然派哲学家”，因为他们关切的主题是大自然与它的循环与变化。

The natural philosophers had been mainly concerned with the nature of the physical world.

自然哲学家主要关注物质世界的本质。

We could say that the natural philosophers took the first step in the direction of scientific reasoning, thereby becoming the precursors of what was to become science.

可以说， 自然哲学家向科学推理的方向迈出了第一步，从而成为后来成为科学的先驱。

Later we will look at the way he formulated his own natural philosophy, since it was Aristotle who summed up what the natural philosophers before him had said.

稍后我们将看看他是如何阐述他自己的自然哲学的， 因为正是亚里士多德总结了他之前的自然哲学家所说的话。

In a statement, she said: " Like Isaac Newton and Albert Einstein, he is a natural philosopher who unites a curiosity about the behavior of nature with a playful and profound philosophical mind."

在一份声明中，她说：“就像艾萨克·牛顿和阿尔伯特·爱因斯坦一样，他是一位自然哲学家，他将对自然行为的好奇心与有趣而深奥的哲学思想结合在一起。”

They were first predicted in 1780s by natural philosopher Jon Michell who suggested that the gravity of a sufficiently dense star could be so great that even light emitted by it would be unable to escape its pull.

自然哲学家乔恩·米歇尔在18世纪80年代首次预测了这种现象。他认为，当恒星的密度足够大时，其产生的引力也会很大，甚至连它自己发出的光也无法逃脱。

Here I am again, Sophie. Today you are going to hear about the last of the great natural philosophers. His name is Democritus (c. 460-370 B.C.) and he was from the little town of Abdera on the northern Aegean coast.

我又来了，苏菲。今天您将听到最后一位伟大的自然哲学家的故事。他的名字叫德谟克利特（约公元前 460-370 年），来自爱琴海北部海岸的小镇阿布德拉。

The scientific discoveries of Isaac Newton's  " Principia Mathematica" and the works of natural philosophers such as Galileo Galilei  helped usher in a wave of scientific progress, a scientific revolution, based on a new,   advanced understanding of the scientific method.

艾萨克·牛顿的“数学原理”的科学发现和伽利略·伽利莱等自然哲学家的著作帮助引领了科学进步的浪潮，一场基于对科学方法的新的、先进的理解的科学革命。