To think well is to serve God in the interior court.

As nothing is more easy than to think, so nothing is more difficult than to think well.

The soul is made for action, and cannot rest till it be employed. Idleness is its rust. Unless it will up and think and taste and see, all is in vain.

Is it not easy to conceive the World in your Mind? To think the Heavens fair? The Sun Glorious? The Earth fruitful? The Air Pleasant? The Sea Profitable? And the Giver bountiful? Yet these are the things which it is difficult to retain. For could we always be sensible of their use and value, we should be always delighted with their wealth and glory.