It is likely that the concept of fractional numbers dates to prehistoric times. Even the Ancient Egyptians wrote math texts describing how to convert general fractions into their special notation.
Today we stand on a bridge leading from the territorial state to the world community. Politically, we are still governed by the concept of the territorial state; economically and technically, we live under the auspices of worldwide communications and worldwide markets. Christian Lous Lange
The concept of reason itself appears as an artificial attempt to separate intellectual powers from the frustrations, emotions, and accidents which cause events; the concept of reason is viewed as facade to prevent change. Edward Levi
No further evidence is needed to show that 'mental illness' is not the name of a biological condition whose nature awaits to be elucidated, but is the name of a concept whose purpose is to obscure the obvious. Thomas Szasz
Our empirical criterion for a series of theories is that it should produce new facts. The idea of growth and the concept of empirical character are soldered into one. Imre Lakatos
A Yale University management professor in response to student Fred Smith's paper proposing reliable overnight delivery service: The concept is interesting and well-formed, but in order to earn better than a 'C', the idea must be feasible. Frederick W. Smith
According to the concept of transformational evolution, first clearly articulated by Lamarck, evolution consists of the gradual transformation of organisms from one condition of existence to another. Ernst Mayr
However, there's no theme or concept behind Heathen, just a number of songs but somehow there is a thread that runs through it that is quite as strong as any of my thematic type albums. David Bowie
It is one of the consolations of philosophy that the benefit of showing how to dispense with a concept does not hinge on dispensing with it. Willard Van Orman Quine
Everyone's just extracting meaning and feeling and emotion from almost every aspect of music, and I think that for me, it's a huge antidote to that to have a concept album. Aimee Mann
The focus of tolerance education is to deal with the concept of equality and fairness. We need to establish confidence with children that there is more goodness than horror in this world. Morris Dees
When Jesus calls his disciples 'brothers' and 'friends', he is contradicting general Jewish usage and breaking through into a new concept of brotherhood which is not tribal, but open to any person. David Kirk
I forced myself to think what is the new concept and it became clear to me that it was risk, not only in technology and ecology, but in life and employment, too. Ulrich Beck
Even very young children need to be informed about dying. Explain the concept of death very carefully to your child. This will make threatening him with it much more effective. P. J. O'Rourke
One concept corrupts and confuses the others. I am not speaking of the Evil whose limited sphere is ethics; I am speaking of the infinite. Jorge Luis Borges