Enormous amounts of money are spent for publicity. As a result, large quantities of alimentary and pharmaceutical products, at the least useless, and often harmful, have become a necessity for civilized men.

The most efficient way to live reasonably is every morning to make a plan of one's day and every night to examine the results obtained.

Intelligence is almost useless to the person whose only quality it is.

The cell is immortal. It is merely the fluid in which it floats that degenerates. Renew this fluid at regular intervals, give the cells what they require for nutrition, and as far as we know, the pulsation of life can go on forever.

All of us, at certain moments of our lives, need to take advice and to receive help from other people.

There are no watertight compartments in our inmost nature.

Hard conditions of life are indispensable to bringing out the best in human personality.