To live the greatest number of good hours is wisdom.

There are many faculties in man, each of which takes its turn of activity, and that faculty which is paramount in any period and exerts itself through the strongest nation, determines the civility of that age: and each age thinks its own the perfection of reason.

Proportion is almost impossible to human beings. There is no one who does not exaggerate.

One idea lights a thousand candles.

I cannot find language of sufficient energy to convey my sense of the sacredness of private integrity.

One of the most wonderful things in nature is a glance of the eye; it transcends speech; it is the bodily symbol of identity.

The laws of light and of heat translate each other;-so do the laws of sound and colour; and so galvanism, electricity and magnetism are varied forms of this selfsame energy.