Every ant knows the formula of its ant-hill, every bee knows the formula of its beehive. They know it in their own way, not in our way. Only humankind does not know its own formula.

It's the great mystery of human life that old grief passes gradually into quiet tender joy.

The man who has a conscience suffers whilst acknowledging his sin. That is his punishment.

The formula 'Two and two make five' is not without its attractions.

Even as I approach the gambling hall, as soon as I hear, two rooms away, the jingle of money poured out on the table, I almost go into convulsions.

The perpetration of a crime is accompanied by illness!

A true friend of mankind whose heart has but once quivered in compassion over the sufferings of the people, will understand and forgive all the impassable alluvial filth in which they are submerged, and will be able to discover the diamonds in the filth.