Publilius Syrus (1st Century BC) Roman writer and poet.
Being sure of yourself is a good thing.
Just not as much as being willing to verify what you believe to be true, actually is.
Not all of it will be.



"Change has a considerable psychological impact on the human mind. To the fearful it is threatening because it means things may get worse. To the hopeful it is encouraging because it means things may get better. To the confident it is inspiring because the challenge exists to make things better."