"Simplicity is the ultimate sophistication."
" Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world."
"The good physician treats the disease; the great physician treats the patient who has the disease'
"The knowledge of Natural-History, being Observation of Matters of Fact, is more certain than most others, less subject to Mistakes than Reasonings, Hypotheses and Deductions."
" I attribute my success to this - I never gave or took any excuse."
"Be less curious about people and more curious about ideas"'
"There are no great things, only small things with great love. Happy are those."
" I must have economic foundations before I can contribute to the society."
"Whoever wants to harvest good rice, must also plant good seeds."