“The only true journey of knowledge is from the depth of one being to the heart of another.”

Source: Pale Blue Dot: A Vision of the Human Future in Space (1994), p. 398

Knowing Yourself: The True in the False (1996)

Encyclopedia of the Philosophical Sciences (1816)
Context: A philosophy without heart and a faith without intellect are abstractions from the true life of knowledge and faith. The man whom philosophy leaves cold, and the man whom real faith does not illuminate, may be assured that the fault lies in them, not in knowledge and faith. The former is still an alien to philosophy, the latter an alien to faith.

Source: Honey Moon (1990), P. 89

1840s, Past and Present (1843)

[2005, The Transfiguration of Man, World Wisdom, 109, 978-0-94153219-8]
Spiritual path, Wisdom

Tragedy and Triumph of Reason (1985)
Context: Nuclear war, unless it is prevented, would lead to the extinction of life on Earth and possibly in the Universe. Can we take such a risk?
In our medical practice when we deal with a critical patient in order to save him, we mobilize all our energies and knowledge, sacrifice part of our hearts and enlist the cooperation of our most experienced colleagues. Today we face a seriously ill humanity, torn apart by distrust and fear of nuclear war. To save it we must arouse the conscience of the world's peoples, cultivate hatred for nuclear weapons, repudiate egoism and chauvinism, and create favorable atmosphere of trust. In the nuclear age we are all interdependent. The Earth is our only common home which we cannot abandon. The new suicidal situation calls for the new thinking. We must convince those who take political decisions.
Our professional duty is to protect life on Earth. True to the Hippocratic Oath, physicians will dedicate their knowledge, their hearts and their lives to the happiness of their patients and the well-being of the peoples of the world.