Robert A. Heinlein Quotes

Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when

Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival. (Robert A. Heinlein)

Robert A. Heinlein Quotes Pictures

Robert A. Heinlein Quotes: Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.
Robert A. Heinlein Quotes: Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.
Robert A. Heinlein Quotes: Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.
Robert A. Heinlein Quotes: Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.
Robert A. Heinlein Quotes: Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.
Robert A. Heinlein Quotes: Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.
Robert A. Heinlein Quotes: Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.
Robert A. Heinlein Quotes: Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.
Robert A. Heinlein Quotes: Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.
Robert A. Heinlein Quotes: Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.
Robert A. Heinlein Quotes: Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.
Robert A. Heinlein Quotes: Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.
Robert A. Heinlein Quotes: Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.
Robert A. Heinlein Quotes: Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.
Robert A. Heinlein Quotes: Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.