recklessness.

The timid man is never reckless, the wise man frequently is, the
fool always; the recklessness of the last is blind; if he gets
through all right he is lucky.

It is reckless to race sixty miles an hour over a highway; but the
man who does it with his eyes wide open, with a perfect
appreciation of all the dangers, is, in reality, less reckless
than the man who blindly runs his machine, hit or miss, along the
road at thirty miles an hour,--the latter leaves havoc in his
train.

One must have a cool, quick, and accurate appreciation of the
margin of safety under all circumstances; it is the utilization of
this entire margin--to the very verge--that yields the largest
results in the way of rapid progress.

Every situation presents its own problem,--a problem largely
mechanical,--a matter of power, speed, and obstructions; the
chauffeur will win out whose perception of the conditions
affecting these several factors is quickest and clearest.

One man will go down a hill, or make a safe turn at a high rate of
speed, where another will land in the ditch, simply because the
former overlooks nothing, while the latter does. It is not so much
a matter of experience as of natural bent and adaptability. Some
men can drive machines with very little experience and no
instructions; others cannot, however long they try and however
much they are told.