Knowledge without courage is sterile.

“There are rules to luck, not everything is chance for the wise; luck can be hel…”

“Nature and art: The material and the workmanship. There is no beauty unaided, n…”

“Recognize things when they are at their best, in their season, and know how to …”

“Every fool stands convinced; and everyone convinced is a fool. The faultier a p…”