"The dog [in Pavlov's experiments] does not continue to salivate whenever it hears a bell unless sometimes at least an…"

"The condition of all progress is experience. We go wrong a thousand times before we find the right path."

"Experience is a good teacher, but she sends in terrific bills."

"Experience can be merely the repetition of same error often enough."

"Experience is a private, and a very largely speechless affair."

"I... refer to the... Waynflete Lectures given by... E. D. Adrian, on The Physical Background of Perception because th…"

"The generation to which EINSTEIN, BOHR and I belong, was taught that there exists an objective physical world, which …"

"Good judgment comes from experience, and experience comes from bad judgment."

"Can you really explain to a fish what it's like to walk on land? One day on land is worth a thousand years of talking…"

"Experience, n. The wisdom that enables us to recognise in an undesirable old acquaintance the folly that we have alre…"