People often overestimate what will happen in the next two years and underestimate what will happen in ten.
Bill Gates (b. 1955) American software magnate [William Henry Gates III]
The Road Ahead, “Afterword” (1996 ed.)
(Source)
First use of this specific formulation, but similar phrases can be traced back to the 1960s. More discussion of variations on this theme: People Tend To Overestimate What Can Be Done In One Year And To Underestimate What Can Be Done In Five Or Ten Years – Quote Investigator®.
Quotations about:
short-term
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A politician, for example, is a man who thinks of the next election; while the statesman thinks of the next generation.
James Freeman Clarke (1810-1888) American theologian and author
“Wanted, a Statesman!”, Old and New Magazine (Dec 1870)
(Source)
Often paraphrased: "A politician thinks of the next election; a statesman thinks of the next generation."
We must accept finite disappointment, but we must never lose infinite hope. Only in this way shall we live without the fatigue of bitterness and the drain of resentment.
Martin Luther King, Jr. (1929-1968) American clergyman, civil rights leader, social activist, preacher
Strength to Love, ch. 10 “Shattered Dreams,” sec. 2 (1963)
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