It is true that Newton tried to reduce light to the motion of material points in his corpuscular theory of light.

He was justified in sticking to his corpuscular theory of light.

It was used by Newton, for instance, in his development of the corpuscular theory of light.

Its success favoured the wave theory of light over the previous corpuscular theory.

Newton in his Opticks of 1704 proposed instead a corpuscular theory of light.

In the 17th century, Sir Isaac Newton described light through a corpuscular theory.

His acceptance of the corpuscular theory of light may have been affected by this.

During the early 19th century, many scientists began to disregard the corpuscular theory in favor of the wave theory of light.

Newton's corpuscular theory of light was gradually succeeded by the wave theory.

After that, the corpuscular theory of light was vanquished, not to be heard of again till the 20th century.