There is no doubt that some plant food, such as oatmeal, is more economical than meat, and superior to it in regard to both mechanical and mental performance. Such food, moreover, taxes our digestive organs decidedly less, and, in making us more contented and sociable, produces an amount of good difficult to estimate.
Burning carbon-based substances like oil, gas, and especially coal, produces billions of tons of extra carbon dioxide each year. Methane gas from cows and pigs and other animals on our large farms ends up in the atmosphere as well, trapping more of the sun's energy as heat.
Fantasy, abandoned by reason, produces impossible monsters; united with it, she is the mother of the arts and the origin of marvels.
Racism cannot be cured solely by attacking some of the results it produces, like discrimination in housing or in education.
An artist is somebody who produces things that people don't need to have.
Learning is any change in a system that produces a more or less permanent change in its capacity for adapting to its environment.
Authentic values are those by which a life can be lived, which can form a people that produces great deeds and thoughts.
Producing fuel cells and solar panels requires high tech facilities and produces high paying jobs. The industry is booming in Arizona. The state already has about 100 firms in the solar industry and has grown 20% since 2003.
The artist produces for the liberation of his soul. It is his nature to create as it is the nature of water to run down the hill.
A noble man compares and estimates himself by an idea which is higher than himself; and a mean man, by one lower than himself. The one produces aspiration; the other ambition, which is the way in which a vulgar man aspires.