There is only one difference between an old man and a young one:

老年人和年轻人之间仅仅有一个不同：

for fear the agents of other firms should be able to trace the kind of research they are likely to be undertaking.

他们生怕别的公司的情报人员据此摸到他们可能要从事的某项科研项目。

In the conversion of saliva into poison, one might suppose that a fixed process took place.

人们可能认为，唾液转变成毒液，其中有固定的程序。

King Gustavus Adolphus, 'The Northern Hurricane',

当时号称北方飓风的国王古斯塔夫斯·阿道尔弗斯

among historians of science a new and more sophisticated picture has emerged.

但在科学史家中间，一个新的更加复杂的伽利略的形象出现了。

in the end, is reabsorbed into the great ocean of life.

但最终又被重新融进生命的大洋。