If you have built castles in the air, your work need not be lost; that is where they should be. Now put the foundations under them.

What is sour in the house a bracing walk in the woods makes sweet.

A man's ignorance sometimes is not only useful, but beautiful-while his knowledge, so called, is oftentimes worse than useless, besides being ugly.

As long as there is satire, the poet is, as it were, particeps criminis.

Live in each season as it passes; breathe the air, drink the drink, taste the fruit, and resign yourself to the influences of each. Let them be your only diet drink and botanical medicines.

The greatest and saddest defect is not credulity, but an habitual forgetfulness that our science is ignorance.

I have found that hollow, which even I had relied on for solid.