Although gold dust is precious, when it gets in your eyes it obstructs your vision.
— HsiTang

Perfectionism, no less than isolationism or imperialism or power politics, may obstruct the paths to international peace. Let us not forget that the retreat to isolationism a quarter of a century ago was started not by a direct attack against international cooperation but against the alleged imperfections of the peace.
Franklin D. Roosevelt obstructs quote

Literature is a defense against the attacks of life. It says to life: You can't deceive me. I know your habits, foresee and enjoy watching all your reactions, and steal your secret by involving you in cunning obstructions that halt your normal flow.
— Cesare Pavese

The natural effort of every individual to better his own condition is so powerful that it is alone, and without any assistance, capable not only of carrying on the society to wealth and prosperity, but of surmounting 100 impertinent obstructions with which the folly of human laws too often encumbers its operations.
— Adam Smith

The newspaper that obstructs the law on a trivial pretext, for money's sake, is a dangerous enemy to the public weal.That awful power, the public opinion of a nation, is created in America by a horde of ignorant, self-complacent simpletons who failed at ditching and shoemaking and fetched up in journalism on their way to the poorhouse.
— obstructs quotation by Mark Twain