To be thus—
Grey-hair'd with anguish, like these blasted pines,
Wrecks of a single winter, barkless, branchless,
A blighted trunk upon a cursed root,
Which but supplies a feeling to decay—
And to be thus, eternally but thus,
Having been otherwise! Now furrow'd o'er
With wrinkles, plough'd by moments, not by years
And hours—all tortured into ages—hours
Which I outlive!—Ye toppling crags of ice!
Ye avalanches, whom a breath draws down
In mountainous o'erwhelming, come and crush me!
I hear ye momently above, beneath,
Crash with a frequent conflict; but ye pass,
And only fall on things that still would live.

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "To be thus—
Grey-hair'd with anguish, like these blasted pines,
Wrecks of a single winter, barkless, branchless,
A blighted trunk upon a cursed root,
Which but supplies a feeling to decay—
And to be thus, eternally but thus,
Having been otherwise! Now furrow'd o'er
With wrinkles, plough'd by moments, not by years
And hours—all tortured into ages—hours
Which I outlive!—Ye toppling crags of ice!
Ye avalanches, whom a breath draws down
In mountainous o'erwhelming, come and crush me!
I hear ye momently above, beneath,
Crash with a frequent conflict; but ye pass,
And only fall on things that still would live." in the context of "Act I, scene ii." to mean that wisdom is timeless.