The second sentence is: "You must travel well"

It means that if you travel, you must tell where you are going.

2. "Man is born free"

Next sentence: "But he is everywhere in chains",

There is another sentence: "He who thinks he is the master of all other things is actually a slave more than all others."

3. Poor people must be hateful,

The second half sentence: hateful people must be miserable

4. A drop of water will never dry up until it enters the sea,

The second half sentence: But when it enters the sea, it will lose itself.

5. Knowledge is power,

The second part: But more important is the skill of using knowledge.