Sourced

• The keen spirit
  Seizes the prompt occasion, makes the thought
  Start into instant action, and at once
  Plans and performs, resolves and executes!
  • Daniel.

• To those who know thee not, no words can paint!
  And those who know thee, know all words are faint!
  • Sensibility.

• Since trifles make the sum of human things,
  And half our misery from our foibles springs.
  • Sensibility.

• In men this blunder still you find,—
  All think their little set mankind.
  • Florio, Part i.

• Small habits well pursued betimes
  May reach the dignity of crimes.
  • Florio, Part i.

Unsourced

• Obstacles are those frightful things you see when you take your eyes off the goal.
  • Also attributed to Henry Ford.