Happiness comes of the capacity to feel deeply, to enjoy simply, to think freely, to risk life, to be needed. which give happiness. Thomas Jefferson We never enjoy perfect happiness; our most fortunate successes are mingled with sadness; some anxieties always perplex the reality of our satisfaction.

The greatest empiricists among us are only empiricists on reflection: when left to their instincts, they dogmatize like infallible popes.

The greatest discovery of the 20th Century is that our attitude of mind determines our quality of life, not circumstances.

How many of us persist in a precipitate course which, but for a moment of heedlessness we might never have entered upon, simply because we hate to change our minds.

It is well for the world that in most of us, by the age of thirty, the character has set like plaster, and will never soften again.

To be conscious means not simply to be, but to be reported, known, to have awareness of one's being added to that being.

An educated memory depends on an organized system of associations; and its goodness depends on two of their peculiarities: first, on the persistency of the associations; and, second, on their number.