Some one has said that we are moving so fast that when plans are being made to perform some great feat, these plans are broken into by a youth who enters and says, "I have done it."

As quoted in The Treasury of Humorous Quotations (1951) by Evan Esar, p. 103 | As quoted in More Random Walks In Science : An Anthology (1982) by Robert L. Weber, p. 109

The world is moving so fast these days that the man who says it can't be done is generally interrupted by someone doing it. || In these days, a man who says a thing cannot be done is quite apt to be interrupted by some idiot doing it.