People often overestimate what they can accomplish in one year. But they greatly underestimate what they could accomplish in five years. - Peter Drucker
" "People often overestimate what they can accomplish in one year. But they greatly underestimate what they could accomplish in five years.
About Peter Drucker
Peter Ferdinand Drucker (November 19 1909 – November 11 2005) was an Austrian-born American writer, management consultant and university professor. In 1943 he became a naturalized citizen of the United States. He taught at New York University and Claremont Graduate University respectively.
Biography information from Wikiquote
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