Cicero

The pursuit, even of the best things, ought to be calm and tranquil.

Isaac Taylor

A man of meditation is happy, not for an hour a day, but quite round the circle of all his years.

St John of the Cross

If a man wishes to be sure of the road he treads on, he must close his eyes and walk in the dark.

Atisa Dipankara Shrijnana

If the inner mind has been tamed, the outer enemy cannot harm you.

Plato

The life of man in every part has need of harmony and rhythm.

Spinoza

Peace is not the absence of war; it is a virtue, a state of mind, a disposition for benevolence, confidence and justice.

Robert Louis Stevenson

Quiet minds cannot be perplexed or frightened, but go on in fortune or misfortune at their own private pace, like a clock during a thunderstorm.