RPN is a reverse polish command line calculator and repl. It is written in C++ with Lex and Yacc generated grammar. RPN provides a similar syntax as classic reverse polish calculators. I have just released it under the GNU GPLv3 on my github page.

Homo Sapien is the biological classification which includes human beings as we know them today. The first homo sapiens appeared in Africa about 200,000 years ago.

The Bethe Trick - Bethe taught Feynman how square quickly at Los Alamos.

...especially in the rain, we need to walk together.

TO SURVIVE!

Endure, never beaten,

You are not a slave, enslaved;

Dreading, take heart,

Ferociously, as if mortally wounded.

With the tenacity of a badly rusted nail;

That in its age and ardor is still a nail;

Not the featherbrained fearlessness of the turkey;

Who is a coward when faced …