The famous sayings that combine theory and practice are as follows:

1. For me, something that has not yet been realized is the biggest spur in my lifetime. Elwin White

2. Idle people have the least leisure. Sirtis

3. Heaven moves vigorously, and a gentleman strives for self-improvement.

4. There has never been a savior, nor does it rely on gods and emperors. To create human happiness, it all depends on ourselves. Baudier

5. People, you should rely on your own strength. Beethoven

6. Letting a giant dragon hide in your heart is both a torture and a pleasure.

7. People say life is very short, but I think it is they themselves who make life so short. Since they are not good at using life, they complain in turn that time passes too quickly; but I think that for their kind of life, time passes too slowly. Rousseau

8. Boredom is a serious problem for moralists, because more than half of human sins stem from the fear of it. Russell