The teenager followed.
And the lesson remained with him.
Years later, after becoming wealthy enough to purchase almost any car he wanted, he would remember his father's words whenever someone asked why he owned a McLaren.
He had not purchased it to frighten neighbors.
To impress strangers.
Or to prove he belonged in an expensive community.
He bought it because he had loved beautiful machines since childhood.
And because the man who taught him to appreciate them was no longer alive to see what his son had achieved.
After high school, the young man earned a scholarship to study mechanical engineering.
He was talented with mathematics.
But he was equally comfortable working with his hands.
During college, he spent weekends helping at his father's garage whenever he could.
He also worked in engineering laboratories, learning about materials, manufacturing processes, and the increasingly sophisticated electronics used in modern vehicles.
His first professional job was at a manufacturer of automotive components.
He began as a junior engineer.
Worked long hours.
Solved difficult production problems.
And gradually earned a reputation for noticing failures that more experienced employees overlooked.
He was not the loudest man in meetings.
He rarely interrupted.
But when he spoke, he usually had measurements to support his position.
By thirty, he managed a team developing lightweight structural components for high-performance vehicles.
By thirty-four, he had moved into industrial manufacturing technology.
And by thirty-six, he had created a company that developed advanced quality-control systems for automotive and aerospace suppliers.
The business began modestly.
Six employees.
A rented industrial unit.
A handful of contracts.
And a founder who spent more nights thinking about payroll than his own salary.
The first two years were difficult.
Several customers delayed payments.
One large contract collapsed after months of negotiation.
A prototype failed during testing and cost the company nearly everything it had.
There were nights when he sat alone at his desk wondering whether leaving a secure engineering job had been a terrible mistake.
Then a major manufacturer agreed to test his company's inspection technology.
The results were promising.
The system identified defects earlier.
Reduced manufacturing waste.
And helped engineers trace problems before defective parts reached customers.
Another contract followed.
Then another.
Within five years, the company expanded into multiple facilities and employed more than two hundred people.
The founder became successful.
Then wealthy.
Eventually, he sold a significant ownership interest to an industrial technology group while retaining a leadership and investment role.
The transaction changed his life.
But his father did not live to see the final agreement.
He died after a sudden medical emergency when his son was thirty-nine.
The loss devastated him.
His father had been the person he called after every major achievement.
The person who understood the difference between a successful repair and a beautiful-looking failure.