The shrewd guess, the fertile hypothesis, the courageous leap to a tentative conclusion - these are the most valuable coins of the thinker at work. But in most schools guessing is heavily penalized and is associated somehow with laziness. Jerome Bruner
This homage has been rendered not to me - for the Polish soil is fertile and does not lack better writers than me - but to the Polish achievement, the Polish genius. Henryk Sienkiewicz
We are at last on the high lands of Mexico, the districts which at least three different races have chosen to settle in, neglecting the fertile country below. Edward Burnett Tylor
All over the land are vast and handsome pastures, with good grass for cattle, and it strikes me the soil would be very fertile were the country inhabited and improved by reasonable people. Alvar N. C. de Vaca
The possessors of wealth can scarcely be indifferent to processes which, nearly or remotely have been the fertile source of their possessions. Charles Babbage
