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1 " Dr. Jens Kjeldsen-Kragh, M.D., of the Institute of Immunology and Rheumatology at the National Rheumatism Hospital of Oslo, conducted a study about the usefulness of vegetarian foods in arthritis. He found that switching to a vegetarian diet resulted in improved grip strength and much less pain, joint swelling, tenderness and morning stiffness in about 90 per cent of a group of arthritis patients, compared with controls eating an ordinary diet. The patients noticed improvement within a month, and it lasted throughout the entire year-long experiment. Dr. Kjeldsen-Kragh concluded that about 70 per cent of the patients improved because they avoided fats that are likely to instigate the inflammation process. "
― H.K. Bakhru
2 " Men’s economic privilege, their social value, the prestige of marriage, the usefulness of masculine support—all these encourage women to ardently want to please men. They are on the whole still in a state of serfdom. It follows that woman knows and chooses herself not as she exists for herself but as man defines her. She thus has to be described first as men dream of her since her being-for-men is one of the essential factors of her concrete condition. "
― Simone de Beauvoir
3 " Walk neither faster nor slower than your own soul, because it is your soul that will teach you the usefulness of each step you take. "
4 " To measure market needs, I would watch carefully what customers do, not simply listen to what they say. Watching how customers actually use a product provides much more reliable information than can be gleaned from a verbal interview or a focus group. Thus, observations indicate that auto users today require a minimum cruising range (that is, the distance that can be driven without refueling) of about 125 to 150 miles; most electric vehicles only offer a minimum cruising range of 50 to 80 miles. Similarly, drivers seem to require cars that accelerate from 0 to 60 miles per hour in less than 10 seconds (necessary primarily to merge safely into highspeed traffic from freeway entrance ramps); most electric vehicles take nearly 20 seconds to get there. And, finally, buyers in the mainstream market demand a wide array of options, but it would be impossible for electric vehicle manufacturers to offer a similar variety within the small initial unit volumes that will characterize that business. According to almost any definition of functionality used for the vertical axis of our proposed chart, the electric vehicle will be deficient compared to a gasolinepowered car.This information is not sufficient to characterize electric vehicles as disruptive, however. They will only be disruptive if we find that they are also on a trajectory of improvement that might someday make them competitive in parts of the mainstream market. The trajectories of performance improvement demanded in the market—whether measured in terms of required acceleration, cruising range, or top cruising speed—are relatively flat. This is because traffic laws impose a limit on the usefulness of ever-more-powerful cars, and demographic, economic, and geographic considerations limit the increase in commuting miles for the average driver to less than 1 percent per year. At the same time, the performance of electric vehicles is improving at a faster rate—between 2 and 4 percent per year—suggesting that sustaining technological advances might indeed carry electric vehicles from their position today, where they cannot compete in mainstream markets, to a position in the future where they might. "
― Clayton M. Christensen
5 " Way back in 1831, Michael Faraday, one of the founders of our modern understanding of electromagnetism, was asked by an inquiring politician about the usefulness of this newfangled " electricity" stuff. His apocryphal reply: " I know not, but I wager that one day your government will tax it" . "
6 " You can tell a lot about an area from its library, and I'd never discount the usefulness of town archives. "
― Hester Young , The Gates of Evangeline (Charlie Cates, #1)
7 " It is vital to acknowledge the new reality before taking any steps to change the existing policies. The world is not the same anymore. Tackling religion-based terrorism is perhaps one, if not the most serious threat the world face in the 21st century. Unfortunately, more terror attacks like the ones in San Bernardino, Brussels and Paris are expected to occur. While those attacks were a reminder of the challenges that lay ahead, they exposed the need to have an improved early warning system that may ultimately save civilian lives. Such a system should take into account the shortcomings of the current warning frameworks and evaluate the usefulness of warnings generated by improved models that would cover a broad range of attacks, larger geographic areas within the country in question and a wide range of potential attack scenarios. The system is likely to facilitate well informed decisions on the assessment of information gathered from different sources. In this vein, finding a balance between protecting human rights and ensuring national security is key. "
― Widad Akreyi
8 " I am aware of the usefulness of science to society and of the benefits society derives from it. "