Everyone makes a greater effort to hurt other people than to help himself.

More than half of all great remedies known to medical history have come from empiricists...'irregulars'...of no or little scientific training. There is no reason to believe that conditions have essentially changed.

...the influence of the factory upon the physiological and mental state of the workers has been completely neglected.

The modern city consists of...dark, narrow streets full of gasoline fumes, coal dust, and toxic gasses, torn by the noise.

There are no watertight compartments in our inmost nature.

In man, the things which are not measurable are more important than those which are measurable.

Discipline brings us effort, sacrifice and suffering. Later it brings us something of an inestimable value: something of which those who live only for pleasure, profit or amusement will always be deprived. This peculiar indefinable joy which one must have felt oneself to understand is the sign with which life marks its moment of triumph.