Brilliant, clearly written, and wonderfully brief essays that span the life works of Karl Popper, organized into four parts: Theory of Knowledge, Philosophy of Science, Metaphysics, and Social Philosophy.
Perhaps best known for his 'Open Society and Its Enemies' (written during WWII while in New Zealand), Popper is clearly an advocate of open and free debate in all academic disciplines. Against solving irrelevant 'puzzles of language' - a habit of philosophers and Ludwig Wittgenstein in particular (Read book on this: 'Wittgenstein's Poker') - Popper is most concerned with solving real world 'problems' that impact human life. 'Our ignorance is sobering and boundless' he suggests but, together, through open-ness we can move toward finding ever-adjusting solutions for a better world.
Like other survivors of WWII (e.g. Isaiah Berlin), Popper is especially concerned with those who advocate 100% solutions to society's woes. One of our clearest advocates of the lessons of the Ancient Greeks, Popper tells us: The 'tradition of critical discussion' was the secret of the ancients. This tradition leads us to the realization that our attempts to find 'truth' are never final; and that criticism and critical discussion are our only means of getting nearer to the truth.
For those interested in: 1) Clear-headed discussions on science and philosophy, and 2) Hearing from a strong advocate of freedom and the 'western tradition' read this book. And bring a pencil.