Authors:

Not until, years later, I found my true interest in life did I discover that I could master a subject, no matter how difficult, if it helped me in what I wanted to do.

Lincoln Ellsworth (1938). “Beyond Horizons”, New York, Book League of America
Not until, years later, I found my true interest in life did I discover that I could master a subject, no matter how difficult, if it helped me in what I wanted to do.