John Milton

1667 · London, England · Put in the mouth of Satan, cast out of heaven and fallen into hell

The mind is its own place, and in it self Can make a Heav’n of Hell, a Hell of Heav’n.

Paradise Lost, book 1

In the same thread

c. AD 63 · Roman Empire · To a friend anxious about the future

There are more things, Lucilius, that frighten us than that crush us, and we suffer more often in imagination than in reality.

Plura sunt, Lucili, quae nos terrent quam quae premunt, et saepius opinione quam re laboramus.

Letters to Lucilius 13

c. 5th century BC · the Ganges plain, India · The first verse of the Dhammapada, the collection of verses handed down as the Buddha's words

Mind goes before all things. Mind is their chief; they are made by mind.

Manopubbaṅgamā dhammā, manoseṭṭhā manomayā

Dhammapada 1

published 1609 · England

Weary with toil, I haste me to my bed, The dear respose for limbs with travel tir'd; But then begins a journey in my head

Sonnet 27