"Concentration is my motto - first honesty, then industry, then concentration" — Andrew Carnegie

Four seasons fill the measure of the year; there are four seasons in the mind of man

Source: The Human Seasons (1818)

Reading is to the mind what exercise is to the body

Source: The Tatler, no. 147 (1710)

Talking with a friend is nothing else but thinking aloud

Source: The Spectator, no. 225 (1711)

Nobody can tell what I suffer! But it is always so. Those who do not complain are never pitied.

Source: Pride and Prejudice (1813)

My imagination is a monastery and I am its monk

Source: Letters of John Keats (1817-1820)

Memory is the diary that we all carry around with us

Source: The Importance of Being Earnest (1895)

Andrew Carnegie Quote