“We have flattered ourselves by inventing proverbs of comparison in matter of blindness,--"blind as a bat," for instance. It would be safe to say that there cannot be found in the animal kingdom a bat, or any other creature, so blind in its own range of circumstance and connection, as the greater majority of human beings are in the bosoms of their families. Tempers strain and recover, hearts break and heal, strength falters, fails, and comes near to giving way altogether, every day, without being noted by the closest lookers-on.”