They are fearful about "runaway" conventions making unwanted changes.
The process of constitution change is a political process and therefore there is always a risk of run away conventions coming up with unwanted and sometimes undesirable changes.
When using chopsticks, it is not appropriate to place them vertically. This is because putting your chopsticks facing straight up gives e impression to others that you want someone to die and wish death upon someone.
Judging from your other questions, I would guess the Aztecs, because they had an extremely advanced civilization relative to their time period. However, you might want a second opinion to verify this. Hope this helps.
Answer:
A secondary source summarizes large amounts of evidence.
Explanation:
Primary sources correspond to “primary literature” and are those that present themselves and are disseminated exactly as they are produced by their authors. Primary sources are original materials on which other research is based. This type of source presents the information in its original form, without interpretation, summarization or evaluation by other writers.
On the other hand, secondary sources are interpretations and evaluations of primary sources for this reason present a series of evidences that support their interpretations. In this sense, secondary sources may be more useful than a primary source.