The Japanese word Sensei means "teacher" and is written with the following two kanji:
Sen [ON reading] - saki (KUN reading)
Means "what stay ahead, first of all"
Sei [ON reading] - i(kiru) [KUN reading]
Means "to live"

So the word is written like this:
And means something like "Someone who live ahead".
If you're not dumb, you just understood the reason of this Web Design.

Ah, the word SenSei is spoken like "Sensee". Thanks to Tsubaki for the advice ^^