Wilhelm Roentgen - From the Activity category:
There is much to do, and I am busy, very busy. (Wilhelm Roentgen)
Wilhelm Roentgen - From the Discovery category:
Great discoveries are made accidentally less often than the populace likes to think. (Wilhelm Roentgen)
Wilhelm Roentgen - From the Experiments category:
I didn't think; I experimented. (Wilhelm Roentgen)
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