Exertion Quote by Peter Medawar

Experiment is the only means of knowledge at our disposal. Everything else is poetry, imagination.

— Max Planck

Experiment is the sole source of truth. It alone can teach us something new; it alone can give us certainty.

— Henri Poincare

Experiments are mediators between nature and idea.

— Johann Wolfgang von Goethe

“As we explore new ways of thinking, we need to be willing to investigate, experiment, take some risks with our attention, and stretch.”

— Sharon Salzberg

“The practice of good science requires that when we observe something that doesn’t fit a hypothesis, these observations need to be reckoned with somehow.”

— Nina Teicholz

What Mach calls a thought experiment is of course not an experiment at all. At bottom it is a grammatical investigation.

— Ernst Mach

Experiments work when, and only when, they call into action cognitive capacities that might reliably deliver the conclusions drawn.

— Philip Kitcher

Experiment is the sole judge of the validity of any idea.

— Richard P. Feynman

To pry into the secrets of this world, we must make experiments. But experiment is a clumsy instrument, afflicted with a fatal determinacy which…

— Banesh Hoffmann

To me the greatest moment in an experiment is always just before I learn whether the particular idea is a good or a bad…

— Ivar Giaever

Regard everything as an experiment.

— Corita Kent

At the heart of science is experimentation. Science doesn't care what you think. What's important is experimenting and actually working stuff out.

— Dallas Campbell