Thus, all unknown quantities can be expressed in terms of a single quantity, whenever the problem can be constructed by means of circles and straight lines, or by conic sections, or even by some other curve of degree not greater than the third or fourth. But I shall not stop to explain this in more detail, because I should deprive you of the pleasure of mastering it yourself, as well as of the advantage of training your mind by working over it, which is in my opinion the principal benefit to be derived from this science. Because, I find nothing here so difficult that it cannot be worked out by anyone at all familiar with ordinary geometry and with algebra, who will consider carefully all that is set forth in this treatise.
René DescartesRelated topics
advantage algebra anyone benefit conic curve degree find forth geometry mastering mind nothing opinion pleasure principal problem science set should single stop straight third thus treatise unknown well working meansRelated quotes
It is doubtful whether the artist [unknown] altogether knew what he depicted here in this panel, and even more doubtful whether he could have expressed it in words. That which we praise here as well thought-out and cleverly arranged may, in fact, have been achieved by him unconsciously; for the artist was transformed by pure harmoniousness while executing this picture, and his feeling become his law. Only his disposition, his spiritual exaltation, could have brought forth such a fruit as this picture. Just as the pious man prays without speaking a word and the Almighty hearkens unto him, so the artist with true feeling paints and the sensitive man understands and recognizes it; while even the less sensitive gain some inkling of it.
Caspar David Friedrich
He was often, and much beyond reason, provoked by my failures in cases where success could not have been expected; but in the main his method was right, and it succeeded. I do not believe that any scientific teaching ever was more thorough, or better fitted for training the faculties, than the mode in which logic and political economy were taught to me by my father. Striving, even in an exaggerated degree, to call forth the activity of my faculties, by making me find out everything for myself, he gave his explanations not before, but after, I had felt the full force of the difficulties; and not only gave me an accurate knowledge of these two great subjects, as far as they were then understood, but made me a thinker on both.
John Stuart Mill
When we met in Berlin [1910], I arranged with Heckel and Kirchner that the three of us would go and work together on the lakes of Moritzburg near Dresden. We had long been familiar with the region, and we knew that we would have the opportunity tp paint nudes in the open air without interference... We had to find two or three people who were not professional models and would therefore pose for us without falling into studio routines.... we artists set out early every morning, laden with our equipment, followed by the models with bags full of good things toe at and drink. We lived in complete harmony, we worked and went swimming.... each of us [three] executed a great number of paintings and drawings.
Max Pechstein
We want to stop all immigration from Islamic countries. We want to stimulate voluntary re-emigration to Islamic countries. We want to expel all criminals with dual citizenship and deprive them of their Dutch nationality. We want to de-islamize our nation. Dear Friends, there is a lot of work to do. We, the defenders of freedom and security, have an historic duty. Our generation has been entrusted with a huge task: To oppose Islam and keep the flame of liberty burning. I say it without exaggeration: the future of human civilization depends on us. Now is a time when everyone in the West must do his duty. We are writing history here. So, let us do our duty. Let us stand with a happy heart and a strong spirit. Let us go forth with courage and save freedom!
Geert Wilders
That landscape painter who does not make his skies a very material part of his composition, neglects to avail himself of one of his greatest aids. Sir Joshua Reynolds speaking of the "Landscape" of Titian & Salvator & Claude says 'Even their skies seem to sympathise with the Subject.' I have often been advised to consider my sky as a 'hite Sheet thrown behind the Objects'. Certainly, if the sky is 'obtrusive,' (as mine are) it is bad, but if they are 'evaded' (as mine are not) it is worse, they must and always shall with me make an effectual part of the composition. It will be difficult to name a class of landscape in which the sky is not the 'key note,' the 'standard of Scale' and the chief 'Organ of sentiment.'
John Constable