“Concentration is my motto — first honesty, then industry, then concentration.” – Andrew Carnegie

“A man will be effective to the degree that he is able to concentrate! Concentration is not basically a mode of doing but above all a mode of Being.” – Lawrence LeShan

“Concentration is the ability to think about absolutely nothing when it is absolutely necessary.” – Ray Knight

“To be concentrated means to live fully in the present.” – Erich Fromm

“Concentrate on your job and you will forget your other troubles.” – William Feather

“The real essence of work is concentrated energy.” – Walter Begehot

“Beware of dissipating your powers; strive constantly to concentrate them.” – Johann Wolfgang Von Goethe

“Thought is energy. Active thought is active energy; concentrated thought is a concentrated energy. Thought concentrated on a definite purpose becomes power.” – Charles Haanel

“Concentration is the factor that causes the great discrepancy between men and the results they achieve… the difference in their power of calling together all the rays of their ability and concentrating on one point.” – Orison Swett Marden

“It seems essential, in relationships and all tasks, that we concentrate only on what is most significant and important.” – Søren Kierkegaard

“The giants of the race have been men of concentration, who have struck sledge-hammer blows in one place until they have accomplished their purpose. The successful men of today are men of one overmastering idea, one unwavering aim, men of single and intense purpose.” – Orison Swett Marden

“When every physical and mental resources is focused, one’s power to solve a problem multiplies tremendously.” – Norman Vincent Peale