I accept no principles of ...

I accept no principles of physics which are not also accepted in mathematics.
I accept no principles of physics which are not also accepted in mathematics.
 Rene Descartes

More phrases

[The Jews] tried to kill the principles of all religions with the same mentality in which they betrayed Jesus Christ and the same way they tried to betray and kill the Prophet Muhammad.
 Bashar al-Assad
The Warrior Diet is the only diet today that challenges all common dietary concepts and offers a real alternative—guidelines that are not based on superficial restrictions, but rather on true principles of human nutrition.
 Ori Hofmekler
Men are anxious to improve their circumstances, but are unwilling to improve themselves; they therefore remain bound.
Men submit from habit to everything that seeks power.
My mother was the source from which I derived the guiding principles of my life.
 John Wesley

Quotes from the same author

It is not enough to have a good mind; the main thing is to use it well.
 René Descartes
The greatest minds are capable of the greatest vices as well as of the greatest virtues.
 René Descartes
Divide each difficulty into as many parts as is feasible and necessary to resolve it.
 René Descartes
Perfect numbers like perfect men are very rare.
 Rene Descartes
The greatest minds, as they are capable of the highest excellencies, are open likewise to the greatest aberrations; and those who travel very slowly may yet make far greater progress, provided they keep always to the straight road, than those who, while they run, forsake it.
 Rene Descartes