Ignorance more frequently begets confidence than does knowledge: it is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science.
“Let us read with method, and propose to ourselves an end to which our studies may point. The use of reading is to aid us in thinking.”
“If you don't accept failure as a possibility, you don't set high goals, you don't branch out, you don't try - you don't take the risk.”