Cogito ergo sum, French Je pense donc je suis, English, I think, therefore I am is a philosophical Latin statement proposed by Rene Descartes. The simple meaning of the phrase is that someone wondering whether or not he or she exists is, in and of itself, proof that something, an I, exists to do the thinking. However, this I is not the more or less permanent person we call I. It may be that the something that thinks is purely momentary, and not the same as the something which has a different thought the next moment. The phrase became a fundamental element of Western philosophy, as it was perceived to form a foundation for all knowledge. While other knowledge could be a figment of imagination, deception or mistake, the very act of doubting one's own existence serves to some people as proof of the reality of one's own existence, or at least that of one's thought.

• I Think Therefore I Am,
• American Apparel t-shirt made of 100 percent fine ring-spun combed cotton, this lightweight fine jersey is exceptionally smooth and tight-knit
• typography, text, quotes, art, saying, quote, words, motivational, inspirational, conceptual, slogan, phrases, life
• T-shirts are fitted, for a looser fit please order a size larger than typical.

I Think Therefore I Am,Word Art etc