The highest wisdom and the highest genius have been invariably accompanied with cheerfulness. We have sufficient proofs on record that Shakespeare and Socrates were the most festive companions.

But though first love's impassioned blindness Has passed away in colder light, I still have thought of you with kindness, And shall do, till our last goodnight. The ever-rolling silent hours Will bring a time we shall not know, When our young days of gathering flowers Will be an hundred years ago.

They have poisoned the Thames and killed the fish in the river. A little further development of the same wisdom and science will complete the poisoning of the air, and kill the dwellers on the banks. I almost think it is the destiny of science to exterminate the human race.

He kept at true good humor's mark The social flow of pleasure's tide: He never made a brow look dark, Nor caused a tear, but when he died.

I almost think it is the ultimate destiny of science to exterminate the human race.

Laughter is pleasant, but the exertion at my age is too much for me.

Clouds on clouds, in volumes driven, curtain round the vault of heaven.