“Don’t hope for a life without problems,” the panda said. “There’s no such thing. Instead, hope for a life full of good problems.”

Lecture at Princeton University, Princeton, New Jersey (March 1954); published in “The Unifying Factor” in Realities of American Foreign Policy (1954), p. 116
Context: Now this problem of the adjustment of man to his natural resources, and the problem of how such things as industrialization and urbanization can be accepted without destroying the traditional values of a civilization and corrupting the inner vitality of its life — these things are not only the problems of America; they are the problems of men everywhere. To the extent that we Americans become able to show that we are aware of these problems, and that we are approaching them with coherent and effective ideas of our own which we have the courage to put into effect in our own lives, to that extent a new dimension will come into our relations with the peoples beyond our borders, to that extent, in fact, the dreams of these earlier generations of Americans who saw us as leaders and helpers to the peoples of the world at large will begin to take on flesh and reality.

Source: Flamecaster

Epistulae ad Atticum (Letters to Atticus) Book IX, Letter X, section 3
Often paraphrased as: Dum anima est, spes est ("While there is life there is hope")
Compare: "While there's life there’s hope, and only the dead have none." Theocritus, Idyll 4, line 42; as translated A. S. F. Gow

Source: The Purpose Driven Life: What on Earth Am I Here For? (2002), Ch. 2 : I'm Not an Accident
Source: The Purpose Driven Life: What on Earth Am I Here for?

Letter to Auguste de la Rive (1861), as quoted in The Philosopher's Tree : A Selection of Michael Faraday's Writings (1999) edited by Peter Day, p. 199
Context: I am, I hope, very thankful that in the withdrawal of the powers and things of life, the good hope is left with me, which makes the contemplation of death a comfort — not a fear. Such peace is alone the gift of God, and as it is He who gives it, why should we be afraid? His unspeakable gift in His beloved Son is the ground of no doubtful hope, and there is the rest for those who )like you and me) are drawing near the latter end of our terms here below. I do not know, however why I should join you with me in years. I forget your age, but this I know (and feel as well) that next Sabbath day (the 22nd) I shall complete my 70th year. I can hardly think myself so old as I write to you — so much of cheerful spirit, ease and general health is left to me, and if my memory fails, why it causes that I forget troubles as well as pleasure and the end is, I am happy and content.

Epistulae ad Atticum (Letters to Atticus) Book IX, Letter X, section 3
Often paraphrased as: Dum anima est, spes est ("While there is life there is hope")
Compare: "While there's life there's hope, and only the dead have none." Theocritus, Idyll 4, line 42; as translated A. S. F. Gow
Original: (la) Aegroto dum anima est, spes esse dicitur.

Original: Nella vita, trovare ogni volta la soluzione ad un problema mantiene l’attività intellettuale in piena vitalità.
Source: prevale.net