In life we're most hell-bent on proving things that we're not really sure are true. — Curtis Sittenfeld Copy Share Image
If you wait until you're really sure, you'll never take off the training wheels. — Cynthia Lewis Copy Share Image
No matter what people say just keep going and keep pushing on, if you are really sure of what you believe in. — Anonymous Copy Share Image
It's always good in science to say "Well how do you know that?" and "Are you really sure?" and "Could there be… — Paul Davies Copy Share Image
We have to let go of someone if you are not really sure with what's going on between the two of you. — Ryaj Ablando Catayas Copy Share Image
