Ambition and achievement
Whenever anything is being accomplished, it is being done, I have learned, by a monomaniac with a mission.
— Peter Drucker (1909–2005), Adventures of a Bystander (1979) (Autobiography)

Ambition and achievement

What it means

Drucker observed that real accomplishment usually comes from someone single-mindedly devoted to a mission. Focus moves things forward.

About the author

Peter Drucker — American management consultant and author (1909–2005).

Source and verification

Source
Adventures of a Bystander (1979) (Autobiography)
Reference
Peter Drucker on Wikiquote
Checked
Wording and source taken from the sourced section of the author’s Wikiquote page, which cites the work given here (accessed 2026-10-11).
Copyright
Short quotation from a work that is still in copyright, reproduced briefly for commentary with full attribution. Rights remain with the author or their estate.

The explanation above is ToDoMatriX’s own reading of the quote, not the author’s words.

More on ambition and achievement

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“Try to become not a man of success, but try rather to become a man of value.”

Albert Einstein