The man who never alters his opinion is like standing water, and breeds reptiles of the mind.
– William Blake
"Popular opinion is the greatest lie in the world."
- Carlyle
"He that never changes his opinion never corrects mistakes and will never be wiser on the morrow than he is today."
– Tyron Edwards
"New opinions are always suspected, and usually opposed, without any other reason but because they are not already common."
– John Locke
"The foolish and the dead alone never change their opinion."
– James Russell Lowell
"The feeble tremble before opinion, the foolish defy it, the wise judge it, the skillful direct it."
- Mme. Jeanne Roland
