Worker Always Has Opportunity to Criticise the Suggestion. — The worker is expected to follow the suggestion of Scientific Management without delay, because he believes in the standardization on which it is made, and in the management that makes it. But the Systems afford him an opportunity of reviewing the reasonableness of the suggestion at any time, and his constructive criticism is invited and rewarded.

Suggestion Must Be Followed at the Time. — The suggestion must be followed at the time it is given, or its value as a suggestion is impaired. This is provided for by the underlying idea of coöperation on which Scientific Management rests, which molds the mental attitude of the worker into that form where suggestions are quickest grasped and followed. [48]

"Native Reactions" Enumerated by Prof. James. — Prof. James enumerates the "native reactions" as (1) fear, (2) love, (3) curiosity, (4) imitation, (5) emulation, (6) ambition, (7) pugnacity, (8) pride, (9) ownership, (10) constructiveness.[49] These are all considered by Scientific Management. Such as might have a harmful effect are supplanted, others are utilized.

Fear Utilized by Ancient Managers. — The native reaction most utilized by the first managers of armies and ancient works of construction was that of fear. This is shown by the ancient rock carvings, which portray what happened to those who disobeyed.[50]

Fear Still Used by Traditional Management. — Fear of personal bodily injury is not usual under modern Traditional Management, but fear of less progress, less promotion, less remuneration, or of discharge, or of other penalties for inferior effort or efficiency is still prevalent.

Fear Transformed Under Scientific Management. — Under Scientific Management the worker may still fear that he will incur a penalty, or fail to deserve a reward, but the honest, industrious worker experiences no such horror as the old-time fear included. This is removed by his knowledge

1. that his task is achievable.

2. that his work will not injure his health.

3. that he may be sure of advancement with age and experience.

4. that he is sure of the "square deal."