It looks perfectly clear to me.

If you're storing a 32 bit integer, on a little endian machine you get

[byte 1][byte 2][byte 3][byte 4]
increasing memory address ->
[download]

while on a big endian machine you get

[byte 4][byte 3][byte 2][byte 1] 
increasing memory address ->
[download]

Obviously, big endian is superior and the only true way to store data in memory ;)