老年的巨大优势在于你可以随心所欲地粗鲁。
The great advantage of old age is that you can be as rude as you like.
事实上，自然科学长期以来只是大脑和想象力的产物：现在是时候回归到对物质和显而易见事物的朴素而健全的观察了。
The photograph is a very poor way of communicating what something actually looks like.
In the examination of the parts of animals, I have diligently endeavored to arrive at the truth.