Plutarch quote: “Eurybiades lifting up his staff as if he were going to strike, Themistocles said, "Strike, if you will; but hear."”

Themistocles (-524–-459 BC) Athenian statesman

As quoted in Familiar Quotations, 9th Edition (1894) edited by J. Bartlett, p. 723 http://books.google.com/books?id=pus-AAAAYAAJ&pg=PA723
Originally quoted by Plutarch in [Themistocles] (11.3): (3) And when Eurybiades lifted up his staff as though to smite him, Themistocles said: ‘Smite, but hear me.’ Then Eurybiades was struck with admiration at his calmness, and bade him speak, and Themistocles tried to bring him back to his own position. (Bernadotte Perrin, Ed., via Perseus Project)
Original Greek http://www.perseus.tufts.edu/hopper/text?doc=urn:cts:greekLit:tlg0007.tlg010.perseus-grc1:11.3: [3] ἐπαραμένου δὲ τὴν βακτηρίαν ὡς πατάξοντος, ὁ Θεμιστοκλῆς ἔφη: ‘πάταξον μέν, ἄκουσον δέ.’ θαυμάσαντος δὲ τὴν πρᾳότητα τοῦ Εὐρυβιάδου καὶ λέγειν κελεύσαντος, ὁ μὲν Θεμιστοκλῆς ἀνῆγεν αὐτὸν ἐπὶ τὸν λόγον.

“I cannot tell you when or where the United Nations are going to strike next in Europe. But we are going to strike — and strike hard.”

Franklin D. Roosevelt (1882–1945) 32nd President of the United States

(British Pathé newsreel · They're Going To Get It - Roosevelt (1943) https://www.youtube.com/watch?v=u_V6tL6QRQs)
1940s, State of the Union Address (1943)
Context: I cannot tell you when or where the United Nations are going to strike next in Europe. But we are going to strike — and strike hard. I cannot tell you whether we are going to hit them in Norway, or through the Low Countries, or in France, or through Sardinia or Sicily, or through the Balkans, or through Poland — or at several points simultaneously. But I can tell you that no matter where and when we strike by land, we and the British and the Russians will hit them from the air heavily and relentlessly. Day in and day out we shall heap tons upon tons of high explosives on their war factories and utilities and seaports.
Hitler and Mussolini will understand now the enormity of their miscalculations — that the Nazis would always have the advantage of superior air power as they did when they bombed Warsaw, and Rotterdam, and London and Coventry. That superiority has gone — forever.
Yes, we believe that the Nazis and the Fascists have asked for it — and they are going to get it.

“Be concerned about your brother. You may not be on strike. But either we go up together, or we go down together.”

Martin Luther King, Jr. (1929–1968) American clergyman, activist, and leader in the American Civil Rights Movement

1960s, I've Been to the Mountaintop (1968)

“Tell Hill he must come up … Strike the tent.”

Robert E. Lee (1807–1870) Confederate general in the Civil War

Reported as his last words. There are suggestions that Lee's biographer, Douglas Southall Freeman embellished Lee's final moments; as Lee suffered a stroke on September 28, 1870. Dying two weeks later, on October 12, 1870, shortly after 9 a.m. from the effects of pneumonia. Lee's stroke had resulted in aphasia, rendering him unable to speak. When interviewed the four attending physicians and family stated "he had not spoken since 28 September..."
Misattributed