Darkness is absence of light. Shadow is diminution of light.

The memory of benefits is a frail defence against ingratitude.

Feathers shall raise men even as they do birds towards heaven :- That is by letters written with their quills.

Savage is he who saves himself.

The faculty of imagination is both the rudder and the bridle of the senses.

The men of experiment are like the ant; they only collect and use. But the bee...gathers its materials from the flowers of the garden and of the field, but transforms and digests it by a power of its own.

Of the original phenomena, light is the most enthralling.