I think it is the most beautiful and humane thing in the world, so to mingle gravity with pleasure that the one may not sink into melancholy, nor the other rise up into wantonness.

The lust of avarice as so totally seized upon mankind that their wealth seems rather to possess them than they possess their wealth.

Nulla dies sine linea - Not a day without a line.

There is in them a softer fire than the ruby, there is the brilliant purple of the amethyst, and the sea green of the emerald - all shining together in incredible union. Some by their splendor rival the colors of the painters, others the flame of burning sulphur or of fire quickened by oil.

The most valuable discoveries have found their origin in the most trivial accidents.

The only thing man knows instinctively is how to weep.

As in our lives so also in our studies, it is most becoming and most wise, so to temper gravity with cheerfulness, that the former may not imbue our minds with melancholy, nor the latter degenerate into licentiousness.