Here then is the key
Here, then, it is natural at last
Here then, we are brought to the question
Here, then, we are involved
Here undoubtedly it is
Here we can not but pause to contemplate
Here we come into direct antagonism with
Here we come to the very crux of
Here we have it on high authority
History is replete with predictions
Hitherto I have spoken only of
Holding this view, I am concerned
How can we help believing
How do you account for
How does it happen
How human language staggers when
How infinitely difficult it is
How infinitely superior must it appear
How is this to be explained
How many a time
How momentous, then
How much better, I say, if
How much more rational it would be
How shall I attempt to enumerate
How shall I describe to you
However, I am viewing the matter
However, I will not in any way admit
However, it is to me a very refreshing thing
I
I abide by my statement
I add a few suggestions
I adduce these facts [adduce = cite as an example]
I admire the main drift of
I admit, of course, at once
I admit the extreme complexity
I again ask
I allude to
I always delight to think
I always will assert the right to
I am a great admirer
I am a little at a loss to know
I am about to supplement
I am agitated by conflicting emotions
I am alarmed, indeed, when I see
I am also bound to say
I am also satisfied
I am apprehensive
I am asked to-night to propose
I am assured and fully believe
I am at a loss for adequate terms