All the classical genres are now ridiculous in their rigorous purity.
Karl Wilhelm Friedrich Schlegel

All, all is theft, all is unceasing and rigorous competition in nature; the desire to make off with the substance of others is the foremost - the most legitimate - passion nature has bred into us and, without doubt, the most agreeable one.
Marquis de Sade

As a reward of their clean living and good habits these great stars have been able to withstand the rigorous test of stamina and physical exertion and have thus successfully extended their most remarkable careers over a period of many strenuous years.
Major Taylor

At the time, my personal research objectives were to provide Keynesian economics with more rigorous foundations and to tighten and elaborate the logic of macroeconomic and monetary theory.
James Tobin

Billions are wasted on ineffective philanthropy. Philanthropy is decades behind business in applying rigorous thinking to the use of money.
Michael Porter

Black literature is taught as sociology, as tolerance, not as a serious, rigorous art form.
Toni Morrison

But honestly, if you do a rigorous survey of my work, I'll bet you'll find that biology is a theme far more often than physical science.
David Brin

Gloom and solemnity are entirely out of place in even the most rigorous study of an art originally intended to make glad the heart of man.
Ezra Pound

I think there are different ways of being rigorous, and I am asking people to be as rigorous in their pleasure as in their criticism.
Barbara Kruger

I'm such a girl for the living room. I really like to stay in my nest and not move. I travel in my mind, and that that's a rigorous state of journeying for me. My body isn't that interested in moving from place to place.
Bell Hooks

In a more intellectually rigorous age, I wouldn't be talked about as a satirist at all. I would just be a topical comedian.
Rory Bremner

NSF is the only federal agency with a proven track record of selecting education projects through a rigorous, careful and competitive process that draws on a wide variety of experts from outside government.
Bob Inglis

Ostensibly rigorous and realistic, contemporary conservatism is an ideology of denial. Its symbol is a smile button.
Christopher Lasch

People must insist on the right to say no, to be alone, to stand out from the herd. Creative artists can say all this in their own way and in their own field, by hard, rigorous work.
Tahar Ben Jelloun

Poetry is a form of mathematics, a highly rigorous relationship with words.
Tahar Ben Jelloun

That was my aspiration, so I was there in a seminary with just boys who were studying to be priests. Pretty rigorous schooling; we never got home, we stayed there all year.
Peter Jurasik

The modern mind tends to be more and more critical and analytical in spirit, hence it must devise for itself an engine of expression which is logically defensible at every point and which tends to correspond to the rigorous spirit of modern science.
Edward Sapir

There is no one area of chemical engineering that specifically helped me in my career as an astronaut, it was more the general education in engineering. Also, it was a very difficult and rigorous course. So, it made me strong and resourceful.
Leroy Chiao

Thus, in a sense, mathematics has been most advanced by those who distinguished themselves by intuition rather than by rigorous proofs.
Felix Klein

To take photographs means to recognize - simultaneously and within a fraction of a second - both the fact itself and the rigorous organization of visually perceived forms that give it meaning. It is putting one's head, one's eye and one's heart on the same axis.
Henri Cartier-Bresson