Did Shakespeare write "It was all Greek to me."?

Not exactly. The full line is "For mine own part, it was Greek to me." — from Julius Caesar, Act I.ii.

Vol. 08 · Shakespeare ·Julius Caesar, Act I.ii ·Casca

"It was all Greek to me."

Not quite the line.

How it's usually quoted

"It was all Greek to me."

What Shakespeare actually wrote

"For mine own part, it was Greek to me." Casca — Julius Caesar, Act I.ii

Shakespeare did not write "all Greek" — he wrote "Greek to me." The intensifier "all" is a modern addition that pulled the phrase toward idiom.

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