The free and flexible app for your private thoughts. From On Writing Ideas can travel through time and space without being uttered out loud. The process of telepathy requires two places: A sending place , a transmission place — where the writer sends ideas, such as a desk A receiving place — where the reader receives the ideas/imagery such as a couch, a comfortable chair, in bed From personal notes to journaling, knowledge bases, and project management, Obsidian gives you the tools to come up with ideas and organize them. In Meditations on First Philosophy the philosopher René Descartes describes a series of doubts about the nature of reality, arriving at the famous phrase: I thin k therefore I am Just thin k about it Thin king, Fast and Slow Books/ The Thin g Movies/ He argues that doubting requires thinking, and therefore, the act of thinking confirms his existence. Reason and innate knowledge → acquire knowledge

Fundamental truths and principles can be known independent of experience A priori reasoning Reason and deduction Experience and sensory perception → acquire knowledge All knowledge is derived from experience and observation of the external world A posteriori reasoning In Meditations on First Philosophy the philosopher René Descartes describes a series of doubts about the nature of reality, arriving at the famous phrase: I think therefore I am He argues that doubting requires thinking, and therefore, the act of thinking confirms his existence. Access your notes on any device, secured with end-to-end encryption. Learn more. Publish instantly. Turn your notes into an online wiki, knowledge base, documentation, or digital garden. Learn more. It’s your time to shine.