Nothing makes one old so quickly as the ever-present thought that one is growing older.

Do not judge God's world from your own. Trim your own hedge as you wish and plant your flowers in the patterns you can understand, but do not judge the garden of nature from your little window box.

Erudition can produce foliage without bearing fruit.

We cannot remember too often that when we observe nature, and especially the ordering of nature, it is always ourselves alone we are observing.

To do just the opposite is also a form of imitation.

Be wary of passing the judgment: obscure. To find something obscure poses no difficult, elephants and poodles find many things obscure.

He who is enamored of himself will at least have the advantage of being inconvenienced by few rivals.