Never attribute to malice that which can be adequately explained by stupidity, but don't rule out malice. - Albert Einstein

There is always a certain charm in tracing the evolution of theories in the original papers; often such study offers deeper insights into the subject matter than the systematic presentation of the final result polished by the words of many contemporaries.

Strange is our situation here on Earth. Each of us comes for a short visit, not knowing why, yet sometimes seeming to divine a purpose. From the standpoint of daily life, however, there is one thing we do know: that man is here for the sake of other men - above all for those upon whose smiles and well-being our own happiness depends.

The most incomprehensible thing about the world is that it is at all comprehensible.