562  Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.
602  vision without execution is hallucination
408  The three great essentials to achieve anything worth while are, first, hard work; second, stick-to-itiveness; third, common sense.
775  “Many of life’s failures are people who did not realise how close they were to success when they gave up.” - Thomas Alva Edison
435  We shall have no better conditions in the future if we are satisfied with all those which we have at present.