Not until, years later, I found my true interest in life did I discover that I could master a subject, no matter… — Lincoln Ellsworth Copy Share Image
When the fields of human knowledge are so various and so vast as is the case in our day, the utmost that… — Henry Parry Liddon Copy Share Image
Every three or four years I pick a new subject. It may be Japanese art; it may be economics. Three years of… — Peter Drucker Copy Share Image
