Adjective Satellite
vigilant
Source: WordNetOur Founders always wondered about how long it would last. The price of liberty is everlasting vigilance. You've got to be on your guard every minute or you will lose it. Michael Novak
Be ever on your guard what you say of anybody and to whom. Horace
I would ask you all to be on your guard against the enemy within. Clement Attlee
If it's a slow race you have to be on your guard. You have to be patient, but I prefer that. Michael East
I'm afraid I didn't really like Caracas in Venezuela. From what I saw it seemed so crime-ridden that you really have to be on your guard all the time. Jo Nesbo
Shun the friendship of a lying man. Should you contract a friendship with him, be on your guard. Irish Proverb