1
Life is like riding a bicycle. To keep your balance, you must keep moving.

2
The greatest enemy of knowledge is not ignorance; it is the illusion of knowledge

3
I am among those who think that science has great beauty

4
In sciences, the authority of thousands of opinions is not worth as much as one tiny spark of reason in an individual man

5
A man who dares to waste one hour of time has not discovered the value of life

6
Simplicity is the ultimate sophistication

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