Verb
think on (third-person singular simple present thinks on, present participle thinking on, simple past and past participle thought on)
(transitive) To think about; to meditate concerning.
A man should not risk his life for beauty alone, Kiall, for that fades. You might as well risk it for a rose. Think on it. David Gemmell
Think on this doctrine,-that reasoning beings were created for one another's sake; that to be patient is a branch of justice, and that men sin without intending it. Marcus Aurelius
Think on a 50-year scale, which is a much more natural time-scale for global warming. The US is right now spending about 200 million dollars annually on research into renewable energy. Bjorn Lomborg
Community service has taught me all kinds of skills and increased my confidence. You go out there and think on your feet, work with others and create something from nothing. That's what life's all about. Andrew Shue
One word more, a final caution: Do not forget whom to fear at the last. I have had to be content with killing and torment; but now my plans are laid, and I have begun. I shall not rest until I have eradicated hope from the Earth. Think on that, and be dismayed! Stephen R. Donaldson
Think on the end before you begin. Romanian Proverb