“The ideal person revolutionises your life: encourages you, strengthens your ideas, your dreams, admires and esteems you, but above all rebels against any mistake you make.”

III, 7
Source: Meditations (c. 121–180 AD), Book III

Marcus Aurelius, Meditations, iii. 7
Misattributed

As A Man Thinketh (1902), Visions and Ideals
Context: In all human affairs there are efforts, and there are results, and the strength of the effort is the measure of the result. Chance is not. Gifts, powers, material, intellectual, and spiritual possessions are the fruits of effort; they are thoughts completed, objects accomplished, visions realized.
The Vision that you glorify in your mind, the Ideal that you enthrone in your heart — this you will build your life by, this you will become.

Part 5: "The World of One Physicist", "The 7 Percent Solution", p. 255
Surely You're Joking, Mr. Feynman! (1985)

Original: (it) Il miglior evento che possa accadere nella tua vita è far innamorare una persona dei tuoi pregi.. e soprattutto dei tuoi difetti, che rendono unica la tua esistenza.
Source: prevale.net

As A Man Thinketh (1902), Visions and Ideals
Context: To desire is to obtain; to aspire is to, achieve. Shall man's basest desires receive the fullest measure of gratification, and his purest aspirations starve for lack of sustenance? Such is not the Law: such a condition of things can never obtain: "ask and receive."
Dream lofty dreams, and as you dream, so shall you become. Your Vision is the promise of what you shall one day be; your Ideal is the prophecy of what you shall at last unveil.

Source: The Magic

The Overman Culture (1971)

Source: Haunted (2005)