The beauty of topological insulators lies in their robustness; their surface states are protected by symmetry and topology, making them immune to certain types of disorder.

Your self-worth is determined by you. You don't have to depend on someone telling you who you are.

The more you look, the more you see. The more you see, the more there is to see.

A fool who knows he is a fool is for that very reason a wise man. The fool who thinks he is wise is the one to be called a fool.