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  4. Albert Einstein
  5. I think and think for months and years. Ninety-nine times,...

I think and think for months and years. Ninety-nine times, the conclusion is false. The hundredth time I am right.

Albert Einstein
Inspirational, Motivational, Perseverance
1934 The World as I See It.
I think and think for months and years. Ninety-nine times, the conclusion is false. The hundredth time I am right.