1. A heart full of reason is like a knife full of sharp edges. It causes the hands of those who use it to bleed.

From: [India] Rabindranath Tagore's "Birds"

Introduction: Rabindranath Tagore (1861-1941), Indian poet, writer, social activist Home, philosopher and Indian nationalist. His representative works include "Gitanjali", "Birds", "Sand in the Eyes", "Four People", "Family and the World", "The Gardener", "New Moon", "The Last Psalm", "Gola" ”, “Crisis of Civilization”, etc.

2. No matter in the theoretical or practical scope, without reason, there will be no firmness and stipulation.

From: [Germany] Hegel's "Small Logic"

Introduction: Georg Wilhelm Friedrich Hegel (German: Georg Wilhelm Friedrich Hegel, Often abbreviated as G. W. F. Hegel; August 27, 1770 – November 14, 1831), a German philosopher.

3. Reason is not the ultimate thing, but rather a limited thing, and if the development of reason reaches its peak, it will inevitably transform into its opposite.

From: [Germany] Hegel's "Little Logic"

4. Reason is the only bright light of mankind.

From: [Germany] Heine's "On the History of German Religion and Philosophy"

Introduction: Heinrich Heine (December 13, 1797~ February 17, 1856), a German lyric poet and essayist, known as "the last representative of German classical literature".

5. How does the corruption of a person's heart hinder him from discovering the truth that his reason can grasp!

From: [Germany] Schopenhauer "The Pain Between Will and Life"

Introduction: Arthur Schopenhauer (German: Arthur Schopenhauer, February 22, 1788 - September 21, 1860, died at the age of 72), Germany Famous philosopher. He was the first person in the history of philosophy to openly oppose rationalist philosophy and pioneered irrationalist philosophy. He was also one of the founders and main representatives of voluntarism, believing that the will to life is the force that dominates the operation of the world.