If they are sufficiently complete to live, they do live, and it is well they should live. If they are not sufficiently complete to live, they die, and it is best they should die.

Life is not for learning nor is life for working, but learning and working are for life.

Pervading all nature we may see at work a stern discipline , which is a little cruel that it may be very kind.

Of all the knowledge, that most worth having is knowledge about health! The first requisite of a good life is to be a healthy person.

The more specific idea of Evolution now reached is - a change from an indefinite, incoherent homogeneity to a definite, coherent heterogeneity, accompanying the dissipation of motion and integration of matter.

The great aim of education is not knowledge but action.

We do not commonly see in a tax a diminution of freedom, and yet it clearly is one.