Mine is from Galt's speech: A farmer will not invest the effort of one summer if he’s unable to calculate his chances of a harvest. But you expect industrial giants - who plan in terms of decades, invest in terms of generations and undertake ninety-nine-year contracts -to continue to function and produce, not knowing what random caprice in the skull of what random official will descend upon them at what moment to demolish the whole of their effort. Drifters and physical laborers live and plan by the range of a day. The better the mind, the longer the range. A man whose vision extends to a shanty, might continue to build on your quicksands, to grab a fast profit and run. A man who envisions skyscrapers, will not. Nor will he give ten years of unswerving devotion to the task of inventing a new product, when he knows the gangs of entrenched mediocrity are juggling the laws against him, to tie him, restrict him and force him to fail, but should he fight them and struggle and succeed, they will seize his rewards and his invention.