I believe the answer is: strong, stern, and assertive.
The speech above is specifically made to address woman issue that arise in 1848, when women were openly discriminated against the society.
To gained reader's support on serious issue like this, it is important to use strong, stern, and assertive tone. This could be seen on the monotone statements and formal language that issued in the speech
They go from being in rows all connected to being spred out and only some are touching.
Repetition usually tells us that the someone wants a large emphasis on this word: that it has a significant meaning to them, and/or possibly the whole tale itself.
