May 5 this year marks the 200th birth anniversary of the Danish philosopher SØren Kierkegaard, widely regarded as the founder of existentialism. Here are some of the things he said during his lifetime:
### "Life is not a problem to be solved, but a reality to be experienced."
### "The highest and most beautiful things in life are not to be heard about, nor read about, nor seen but, if one will, to be lived."
### "A man who is a physical being is always turned toward the outside, thinking that his happiness lies outside him, finally turns inward and discovers that the source is within him."
### "People demand freedom of speech as a compensation for freedom of thought which they seldom use."