A traveller without observation is a bird without wings.

"He who learns, and makes no use of his learning, is a beast of burden with a load of books. Does the ass comprehend whether he carries on his back a library or a bundle of faggots?"

"That which is not allotted - the hand cannot reach, and what is allotted - will find you wherever you may be."

"A little and a little, collected together, become a great deal; the heap in the barn consists of single grains, and drop and drop makes an inundation."

"I fear God, and next to God I chiefly fear him who fears Him not."