To different minds, the same world is a hell, and a heaven depending on whether they compare it to something better and so feel disappointed and bitter or something worse and so feel relieved and grateful.

Cultivate the habit of being grateful for every good thing that comes to you, and to give thanks continuously. And because all things have contributed to your advancement, you should include all things in your gratitude.

New arts destroy the old.

Nature is a frugal mother, and never gives without measure. When she has work to do, she qualifies men for that and sends them equipped.

There are some men above grief and some men below it.

There is guidance for each of us, and by lowly listening we shall hear the right word.

Something is wanting to science until it has been humanised.