Thomas Young

The colours of thin plates are not produced by the absorption of light in the common way, but by the interference of the rays.

The undulatory theory of light is not a complete explanation, but it is a very comprehensive one.

The colours of thin plates are not produced by the reflection of light in the common way, but by the interference of the rays.

The undulatory theory of light is not a final explanation, but it is a very fundamental one.

The colours of thin plates are not produced by the refraction of light in the common way, but by the interference of the rays.

The undulatory theory of light is not a perfect theory, but it is a very powerful one.

The colours of thin plates are not produced by the diffraction of light in the common way, but by the interference of the rays.

The undulatory theory of light is not a simple theory, but it is a very profound one.

The colours of thin plates are not produced by the polarization of light in the common way, but by the interference of the rays.

The undulatory theory of light is not a complete theory, but it is a very elegant one.

Light is by no means a substance, but a vibration or pulsation propagated through an elastic medium.

The phenomena of the interference of light may be explained by supposing that light consists of vibrations.

I have endeavoured to show that the dark lines in the spectrum are occasioned by the absorption of certain rays by the atmosphere.

The human mind is capable of comprehending the most abstruse principles of natural philosophy.

Energy is the capacity to do work, a term I introduce to describe the vis viva of bodies.

The modulus of elasticity is a measure of the stiffness of a material.

In the hieroglyphics of Egypt, we find the origins of written language.

The Rosetta Stone has unlocked the mysteries of ancient Egypt for modern scholars.

Physiology teaches us the intricate workings of the human body.

The eye is the window to the soul, but also the organ of vision explained by optics.