Here is the prime condition of success, the great secret: concentrate your energy, thought and capital upon the business in which you are engaged. Having begun in one line, resolve to fight it out on that line, to lead in it; to adopt every improvement; to have the best machinery, and know the most about it.
mars 2022, 60 pages, Anglais
SSEL
9791029913617
SSEL
9791029913617