“Remember, O Menestratus, that, being a mortal endowed with a circumscribed life, thou hast in thy soul ascended, till thou hast seen endless time, and the infinity of things; and what is to be, and what has been.”

Act V, scene 3, line 170.
The Honest Man's Fortune, (1613; published 1647)

VII, 27
Meditations (c. 121–180 AD), Book VII
Context: Think not so much of what thou hast not as of what thou hast: but of the things which thou hast, select the best, and then reflect how eagerly they would have been sought, if thou hadst them not. At the same time, however, take care that thou dost not, through being so pleased with them, accustom thyself to overvalue them, so as to be disturbed if ever thou shouldst not have them.

Variant Translation: Let not thy mind run on what thou lackest as much as on what thou hast already.
VII, 27
Meditations (c. 121–180 AD), Book VII

Poem Sweet Content http://www.bartleby.com/101/204.html

Reported in Josiah Hotchkiss Gilbert, Dictionary of Burning Words of Brilliant Writers (1895), p. 94.

Source: Titus Andronicus

Letter to Charles II of England (25 November 1675)
An Apology for the True Christian Divinity (1678)
Context: There is no king in the world, who can so experimentally testify of God's providence and goodness; neither is there any who rules so many free people, so many true Christians: which thing renders thy government more honorable, thyself more considerable, than the accession of many nations filled with slavish and superstitious souls.
Thou hast tasted of prosperity and adversity; thou knowest what it is to be banished thy native country, to be overruled as well as to rule and sit upon the throne; and being oppressed, thou hast reason to know how hateful the oppressor is both to God and man. If after all these warnings and advertisements thou dost not turn unto the Lord with all thy heart, but forget him who remembered thee in thy distress and give up thyself to follow lust and vanity, surely great will be thy condemnation.
Against which snare, as well as the temptation of those that may or do feed thee and prompt thee to evil, the most excellent and prevalent remedy will be to apply thyself to that Light of Christ, which shineth in thy conscience, which neither can nor will flatter thee nor suffer thee to be at ease in thy sins, but doth and will deal plainly and faithfully with thee as those that are followers thereof have also done.
God Almighty, who hath so signally hitherto visited thee with his love, so touch and reach thy heart, ere the day of thy visitation be expired, that thou mayest effectually turn to him so as to improve thy place and station for his name.

Introductio ad prudentiam: Part II (1727)

Source: [Asiri 1950, No. 334] Asiri 1950 — Asiri, Fazl Mahmud. Rubaiyat-i-Sarmad. Shantiniketan, 1950. Quoted from SARMAD: LIFE AND DEATH OF A SUFI https://iphras.ru/uplfile/smirnov/ishraq/3/24_prig.pdf by N. Prigarina