to sound reasonable; what is said is well-grounded and makes sense

systematic and clear; neat and tidy

a number that can be expressed as a fraction of two integers; includes all integers, fractions, and terminating or repeating decimals

If one's in the right, one can go anywhere; legitimate behavior will be accepted everywhere.

Rational expression in algebra, where the variables are not contained within a root; often contrasted with an irrational expression [[无理式|無理式|wu2 li3 shi4]]

the collection or set of all rational numbers in mathematics

field of rational numbers in mathematics, usually denoted by the symbol Q

Both parties involved in a dispute insist that they are the one in the right and refuse to yield to the other.

to act strictly on the basis of logic or principle while ignoring personal relationships or feelings; to be fair yet showing no mercy or being unreasonably stiff

to have reason; there are grounds or justifications to do something

it is impossible to reason with a person who only respects brute force; an educated person cannot get their point across to a soldier or an unreasonable person