Having the faculty of reason; endued with reason; rational; as, a reasonable being.
Governed by reason; being under the influence of reason; thinking, speaking, or acting rationally, or according to the dictates of reason; agreeable to reason; just; rational; as, the measure must satisfy all reasonable men.
Not excessive or immoderate; within due limits; proper; as, a reasonable demand, amount, price.
The happiness of your life depends upon the quality of your thoughts: therefore, guard accordingly, and take care that you entertain no notions unsuitable to virtue and reasonable nature. Marcus Aurelius
Jealousy is both reasonable and belongs to reasonable men, while envy is base and belongs to the base, for the one makes himself get good things by jealousy, while the other does not allow his neighbour to have them through envy. Aristotle
Employee loyalty begins with employer loyalty. Your employees should know that if they do the job they were hired to do with a reasonable amount of competence and efficiency, you will support them. Harvey Mackay
All the evidence that we have indicates that it is reasonable to assume in practically every human being, and certainly in almost every newborn baby, that there is an active will toward health, an impulse towards growth, or towards the actualization. Abraham Maslow