The bronze script of character Diligent is
In the ancient time, there were much less farm cattle, most of time, people pull the plow, very tough jon. Those people are diligent.
The dictionary of pictography explanation for this character is that a person who is sentenced to death working harder than normal people because it explains the left part 堇 as a hang and fire punishments. But I don't think that they are right explanations.
The big seal script of the character is
Similar to the bronze script.
The small script of the character is
The clerical script of the character is
The left part is similar to the left of older scripts, but the round circle becomes a rectangle, the two dots disappeared, and the falling strokes become horizontal line.
The song typeface of the character is
Almost same as the clerical script.
The Pinyin of the character is Qin2.