Enthusiasm is the intoxication of earnestness.
Earnestness and sincerity are synonymous.
Time and pains will do anything.
Earnestness is the devotion of all the faculties.
Earnestness can ferment into sentimentality.
Oh, that ludicrous virile earnestness!
With sincerity and earnestness one can realize God through all religions.
In all earnestness I asked myself what kind of world I had stumbled into.
Everything which is properly business we must keep carefully separate from life. Business requires earnestness and method; life must have a freed handling.
Earnestness alone makes life eternity.
Death cannot explain itself. The earnestness consists precisely in this, that the observer must explain it to himself.
Earnestness is the salt of eloquence.