58 
JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 13 
our ancestry proves that we need. Walking twice a day two or three 
blocks to one’s office is not following a system of physical exercise. 
Walking five or ten miles is getting nearer to it. Whatever the form 
of exercise there must be interest in it. Forget the elements of your 
profession. Study the stars. Observe the rocks. Carry a camera 
with you. Train your lens on flowers, trees, birds, landscapes. Let 
it help your eye and mind to a new viewpoint and your body to new 
vigor and well-being. 
If that which we choose for our diversion is well selected, if we 
follow it consistently, we shall be certain to find that our interest in it 
widens and deepens. Before long we shall have that excellent adjunct 
to the day’s work of the scientific man—a hobby. Any man is the 
better for the possession of a judicious hobby. We, who are living 
in the circumscribed scientific world, are no exception to the rule. 
Through it we shall daily freshen the flavor of our routine work; we 
shall the better understand the bearing of our profession on the affairs 
of the world at large and the right relation of ourselves to the workers 
in the wider world. 
This, like many other phases of the day’s work, is a question of delib¬ 
erately organized habit. We used to think of habits as largely a 
matter for lifted eyebrows, the facetious subject for New Year’s 
resolutions. They may be that. But they may, also, be one of the 
most useful and satisfactory attributes of living. They are not nec¬ 
essarily dogged, senseless, fortuitous affairs. We may build them 
largely to suit ourselves. It is one of the pleasant things about psy¬ 
chology that it has taught us how to transmute our routine of physical 
life into a program of mental and spiritual growth. Even the posture 
that we school our body to assume presently finds its reflection in our 
mental attitude. The erectness of body, the level carriage of head, 
the vigor of muscular tone, the sturdiness of strength, the poise of co¬ 
ordinated muscles, all of these we may deliberately seek, and in the 
finding we shall renew our inmost character. 
By this means we may choose what we shall be. True we shall 
never attain to all that we choose. It would not be well for us that 
we should, for life is quest as well as attainment and its fullest measure 
is realized in a reasonable mixture of the two ingredients. We shall 
not even have before us an unvarying, specific ideal, for that toward 
which we strive does not assume such definite form. Its outlines are 
always indistinct and always changing. But its substance we may 
picture in our mind and heart and as we contemplate that picture, so 
we shall grow toward it. 
Through it all there is ever this truth: that to the scientist is granted 
the great privilege of a life of service to his fellow men. In the con- 
