What does this quote mean?

“The master-word is Work”

Osler makes sustained work the organizing principle of his address to medical students, emphasizing disciplined practice over brilliance without application.

Source note: The Master-Word in Medicine, address at the opening of the University of Toronto medical faculty buildings, October 1, 1903. This collection treats the line as historical professional rhetoric and not as an endorsement of excessive working hours.

“Diligence is the mother of good luck.”

Persistent effort improves the odds of useful results because steady work creates more opportunities for progress than waiting for favorable circumstances.

Source note: Poor Richard’s Almanack; the maxim appears in Franklin’s collected Poor Richard material.

“Drive thy business, or it will drive thee.”

Work becomes harder to control when it is left unmanaged; the maxim favors deliberate direction, priorities, and active stewardship over reactive pressure.

Source note: Poor Richard’s Almanack; a compact maxim about managing work before accumulated demands begin managing you.

“If you would make anything a habit, do it.”

Habit formation is reduced to repeated action: the behavior itself is what trains the pattern.

Source note: Discourses; Epictetus gives the instruction while explaining how repeated acts strengthen habits.

“Never leave that till tomorrow, which you can do to-day.”

The maxim turns prompt action into a habit: work that can reasonably be completed now should not be needlessly transferred to an uncertain tomorrow.

Source note: The Way to Wealth; a Poor Richard maxim on delay and useful employment of time.

“Activity does not consist in velocity of change but in constancy of purpose.”

Being busy or changing quickly is not the same as purposeful action; continuity of aim gives activity its direction.

Source note: The Life of Reason; the line appears in Santayana’s analysis of ideas, activity, and sustained direction.