René Descartes said the only thing we can be certain about is that we think. But what is the nature of thoughts? Philosophers ...

Periods of happiness are empty pages in history,” he wrote in his Introduction to the Philosophy of History, “for they are the periods of harmony, times when the antithesis is missing.” In other words ...

The Journal of Philosophy, Psychology and Scientific Methods, Vol. 4, No. 3 (Jan. 31, 1907), pp. 57-64 (8 pages) This item is openly available as part of an Open ...