Fresh curls spring from the baldest brow. There is nothing inorganic.

The eye which can appreciate the naked and absolute beauty of a scientific truth is far more rare than that which is attracted by a moral one.

What avails it that another loves you, if he does not understand you? Such love is a curse.

The student who secures his coveted leisure and retirement by systematically shirking any labor necessary to man obtains but an ignoble and unprofitable leisure, defrauding himself of the experience which alone can make leisure fruitful.

It is true, I never assisted the sun materially in his rising, but doubt not, it was of the last importance only to be present at it.

To the virtuous man, the universe is the only sanctum sanctorum, and the penetralia of the temple are the broad noon of his existence.

For more than five years I maintained myself thus solely by the labour of my hands, and I found, that by working about six weeks in a year, I could meet all the expenses of living.