Fret not over the irretrievable, but ever act as if thy life were just begun.

Whatever you can do or dream, begin it.

He who has art and science also has religion, but those who do not have them better have religion.

Several classical sayings that one likes to repeat had quite a different meaning from the ones later times attributed to them.

The greatest happiness for the thinking person is to have explored the explorable and to venerate in equanimity that which cannotbe explored.

If you want someone to develop a specific trait, treat them as though they already had it.

Nature reacts not only to physical disease, but also to moral weakness; when the danger increases; she gives us greater courage