It stops you talking to yourself.
You need others because you learn from them. You need others as comfort.
No. But you do need one after the s, because others is plural.others' attention = the attention of others
Some do, others need wood, others need straw, others need grain, etc. It all depends on the species of the mushroom producing fungus.
There is no need to show it to others, if you are intelligent it will be self evident, there will be no need of further demonstration
To help others
They want to compare themselves to others
Because if you were to be in need you would want people to care for you. Do unto others as you would like others to do for you.
Some people need more sleep than others because of their age and what they do.
To upload others' material, you need their permission.
to keep peace
You need to like to work with others. You also do not need to have a problem letting others know when they do something wrong. You also need to be very creative.
No as long if you care for them they will need no others.