“Mind is the Master-power that molds and makes, and Man is Mind, and ever more he takes the Tool of Thought, and shaping what he wills, brings forth a thousand joys, a thousand ills-He thinks in secret and it comes to pass; Environment is but his looking-glass.”
James Allen
(1864 – 1912) was an English author and poet.

James Allen was a British philosophical writer known for his inspirational books and poetry and as a pioneer of self-help movement. His best known work, As a Man Thinketh, has been mass produced since its publication in 1903. It has been a source of inspiration to motivational and self-help authors.

As A Man Thinketh (1902)

• Mind is the Master power that moulds and makes,
  And Man is Mind, and evermore he takes
  The tool of Thought, and, shaping what he wills,
  Brings forth a thousand joys, a thousand ills: —
  He thinks in secret, and it comes to pass:
  Environment is but his looking-glass.
  • Variant: Mind is the Master Power that molds and makes, And we are mind. And ever more we take the tool of thought, and shaping what we will, bring forth a thousand joys, or a thousand ills. We think in secret, and it comes to pass, environment, is but our looking glass.

• A man is literally what he thinks, his character being the complete sum of all his thoughts.