Why should we build our happiness on the opinons of others, when we can find it in our own hearts?

Happiness: a good bank account, a good cook, and a good digestion.

The apparent ease with which children learn is their ruin.

Teach him to live rather than to avoid death: life is not breath, but action, the use of our senses, our mind, our faculties, every part of ourselves which makes us conscious of our being. Life consists less in length of days than in the keen sense of living. A man maybe buried at a hundred and may never have lived at all. He would have fared better had he died young.

A born king is a very rare being.

In Genoa, the word, libertas can be read on the front of prisons and on the fetters of galley-slaves. The application of this motto is fine and just.

Too much apparatus, designed to guide us in experiments and to supplement the exactness of our senses, makes us neglect to use those senses...The more ingenious our apparatus, the coarser and more unskillful are our senses. We surround ourselves with tools and fail to use those which nature has provided every one of us.