A blind man will not thank you for a looking-glass.

It is we that are blind, not fortune.

If you are the master be sometimes blind, if you are the servant be sometimes deaf.

Justice is lame as well as blind, amongst us.

The improver of natural knowledge absolutely refuses to acknowledge authority, as such. For him, skepticism is the highest of duties; blind faith the one unpardonable sin.

In fair weather prepare for foul.