If we had no winter, the spring would not be so pleasant: if we did not sometimes taste of adversity, prosperity would not be so welcome. - Anne Bradstreet, 'Meditations Divine and Moral,' 1655
In the spring time, the only pretty ring time, when birds do sing... sweet lovers love the spring. - William Shakespeare, As You Like It, Act V, sc. 3
[Spring is] when life's alive in everything. - Christina Rossetti
An optimist is the human personification of spring. - Susan J. Bissonette
Winter is on my head, but eternal spring is in my heart. - Victor Hugo
To be interested in the changing seasons is a happier state of mind than to be hopelessly in love with spring. - George Santayana
I have always thought the actions of men the best interpreters of their thoughts. - John Locke
Change your thoughts and you change your world. - Norman Vincent Peale
Except our own thoughts, there is nothing absolutely in our power. - Rene Descartes
Make not your thoughts your prisons. - William Shakespeare, Antony and Cleopatra, Act V, sc. 2

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