很可能未来会发明出更多辅助视觉的工具，它们超越现有仪器的程度，就像现有仪器超越肉眼一样。
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.
译文：如果遇到早开的梅花，应该折下一枝寄过来。