Non-fiction: How to Use Your Mind

Overview

Grenville Kleiser presents a practical guide to sharpening mental habits for everyday achievement. The text treats thinking as a trainable power, arguing that deliberate attention, orderly planning, and persistent practice convert vague desires into definite results. Throughout, emphasis is on simple, repeatable techniques anyone can apply to work, study, or public life.

Principles of Mental Discipline

Clear thinking begins with concentrated attention: Kleiser insists that scattered thought is the chief barrier to success. Mental discipline is framed as a moral and practical quality requiring resolve, regular exercises, and the elimination of mental habits that waste energy. He links willpower, self-control, and purpose, claiming that a focused mind is the foundation of character and influence.

Practical Methods

Concrete techniques are central: fix a single problem in the mind until it yields, practice short periods of intense concentration, and train the memory by association and repetition. Kleiser recommends active reading, precise note-taking, and summarizing ideas in one's own words to convert information into usable knowledge. Visualization and constructive imagination are offered as tools for planning and rehearsing performances before attempting them in reality.

Planning and Purpose

Goal-setting is portrayed as the engine that directs attention. Kleiser encourages readers to form clear, specific aims, break large tasks into manageable parts, and arrange priorities so effort flows logically from immediate objectives to long-term plans. He argues that planning eliminates confusion, conserves mental energy, and makes progress measurable, turning aspiration into sustained achievement.

Habits and Mental Environment

A disciplined mind requires a supportive environment and healthy habits. Kleiser advises regularity in work routines, sufficient rest, and training the senses to avoid distraction. He warns against mental clutter, idle worrying, rumination, and gossip, and suggests replacing reactive thoughts with constructive, purposeful ones to maintain momentum and morale.

Application and Influence

The work is practical rather than technical: its value lies in shaping daily practice more than teaching abstract psychology. Advice spans studying, public speaking, business decisions, and personal conduct, with examples that show how improved thinking produces tangible results. The central claim is enduring: by learning to use the mind deliberately, individuals enlarge their capacity to accomplish tasks, influence others, and live with clearer purpose.