ubi jus ibi remedium
Meaning There is no wrong without a remedy
quod ab initio non valet in tractu temporis non convalescit
Meaning That which was originally void does not become valid by lapse of time.
de minimis non curat lex
Meaning The law does not concern itself about trifles
nemo debet esse judex in propria sua causa
Meaning No man can be a judge in his own cause
Rex non potest peccare
Meaning The king can do no wrong