Experience alone can decide on truth.
Wisdom is not a product of schooling but of the lifelong attempt to acquire it.
I do not like to state an opinion on a matter unless I know the precise facts.
In my relativity theory I set up a clock at every point in space, but in reality I find it difficult to provide even one clock in my room.
The secret to creativity is knowing how to hide your sources.
Scientific research can reduce superstition by encouraging people to think and view things in terms of cause and effect.