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Robert A. Heinlein Quotes

Never Worry About Theory As Long As The Machinery Does What It's Supposed To Do.

Robert A. Heinlein Quotes: Never Worry About Theory As Long As The Machinery Does What It's Supposed To Do.

Robert A. Heinlein Quotes: Never Worry About Theory As Long As The Machinery Does What It's Supposed To Do.

Robert A. Heinlein Quotes: Never Worry About Theory As Long As The Machinery Does What It's Supposed To Do.

Robert A. Heinlein Quotes: Never Worry About Theory As Long As The Machinery Does What It's Supposed To Do.

Robert A. Heinlein Quotes: Never Worry About Theory As Long As The Machinery Does What It's Supposed To Do.

Robert A. Heinlein Quotes: Never Worry About Theory As Long As The Machinery Does What It's Supposed To Do.

Robert A. Heinlein Quotes: Never Worry About Theory As Long As The Machinery Does What It's Supposed To Do.

Robert A. Heinlein Quotes: Never Worry About Theory As Long As The Machinery Does What It's Supposed To Do.

Robert A. Heinlein Quotes: Never Worry About Theory As Long As The Machinery Does What It's Supposed To Do.

Robert A. Heinlein Quotes: Never Worry About Theory As Long As The Machinery Does What It's Supposed To Do.

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