 On Seeing and Noticing by Alain de Botton |  Why I Am So Wise by Friedrich Nietzsche |  Concepts and Categories by Isaiah Berlin |  The Examined Life by Robert Nozick |  The Heart of Things by A. C. Grayling |  Six Great Ideas by Mortimer J. Adler |  Ten Philosophical Mistakes by Mortimer J. Adler |  The Whys of a Philosophical Scrivener by Martin Gardner |  The Temptation to Exist by E. M. Cioran |  Think: A Compelling Introduction to Philosophy by Simon Blackburn |  Kant in 90 Minutes by Paul Strathern |  What Does It All Mean? by Thomas Nagel |  The Meaning of Things by A. C. Grayling |  The Consolations of Philosophy by Alain de Botton |  Ancient Philosophy: A Very Short Introduction by Julia Annas |  On the Suffering of the World by Arthur Schopenhauer |  Studies in Pessimism by Arthur Schopenhauer |  The Wisdom of Life by Arthur Schopenhauer |  The World as Will and Idea by Arthur Schopenhauer |  Existentialism Is a Humanism by Jean-Paul Sartre |