Florian Cajori Quote

In 1735 the solving of an astronomical problem, proposed by the Academy, for which several eminent mathematicians had demanded several months' time, was achieved in three days by Euler with aid of improved methods of his own... With still superior methods this same problem was solved by the illustrious Gauss in one hour.

p. 248; As cited in: Moritz (1914, 155); Persons and anecdotes. - A History of Mathematics (1893)