The study of geometry is a petty and idle exercise of the mind, if it is applied to no larger system than the starry one. Mathematics should be mixed not only with physics but with ethics; that is mixed mathematics.

The fishermen say that the "thundering of the pond" scares the fishes and prevents their biting.

Such is beauty ever,-neither here nor there, now nor then,-neither in Rome nor in Athens, but wherever there is a soul to admire.

Be wary of technology; it is often merely an improved means to an unimproved end.

I am reminded by my journey how exceedingly new this country still is. You have only to travel for a few days into the interior and back parts even of many of the old States, to come to that very America which the Northmen, and Cabot, and Gosnold, and Smith, and Raleigh visited.

The book has never been written which is to be accepted without any allowance.

One who knew how to appropriate the true value of this world would be the poorest man in it. The poor rich man! all he has is whathe has bought.