George Berkeley 
A Treatise Concerning the Principles of Human Knowledge [Halls of Wisdom] [EPUB ebook] 

What I here make public has, after a long and scrupulous inquiry, seemed to me evidently true and not unuseful to be known–particularly to those who are tainted with Scepticism, or want a demonstration of the existence and immateriality of God, or the natural immortality of the soul. Whether it be so or no I am content the reader should impartially examine; since I do not think myself any farther concerned for the success of what I have written than as it is agreeable to truth. But, to the end this may not suffer, I make it my request that the reader suspend his judgment till he has once at least read the whole through with that degree of attention and thought which the subject-matter shall seem to deserve. For, as there are some passages that, taken by themselves, are very liable (nor could it be remedied) to gross misinterpretation, and to be charged with most absurd consequences, which, nevertheless, upon an entire perusal will appear not to follow from them; so likewise, though the whole should be read over, yet, if this be done transiently, it is very probable my sense may be mistaken; but to a thinking reader, I flatter myself it will be throughout clear and obvious. As for the characters of novelty and singularity which some of the following notions may seem to bear, it is, I hope, needless to make any apology on that account. He must surely be either very weak, or very little acquainted with the sciences, who shall reject a truth that is capable of demonstration, for no other reason but because it is newly known, and contrary to the prejudices of mankind. Thus much I thought fit to premise, in order to prevent, if possible, the hasty censures of a sort of men who are too apt to condemn an opinion before they rightly comprehend it…
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[Halls of Wisdom]
 
From Buddha to Confucius to Plato and down the spiral of time to Kant, Nietzsche and Russell, the Halls of Wisdom are filled to overflowing, yet barely full. Explore the cavernous teachings of the masters, get lost in the art of wonder, and fall in love with wisdom.
The only thing you can lose are your chains.