It is not unlikely, but that there may be yet invented several other helps for the eye, as much exceeding those already found, as those do the bare eye.

I'm not a prophet, I'm not a saint, I'm just a voice.

"Without the past, there is no future."

You can’t change the past, but you can shape the future.

"Jeder hat seine eigene Geschichte, aber nicht jeder kann sie erzählen."

几何学是关于永恒存在的知识。