Sharepoint CSOM Retrieve only selected properties of a website

// Starting with ClientContext, the constructor requires a URL to the 
// server running SharePoint. 
ClientContext context = new ClientContext("http://SiteUrl"); 

// The SharePoint web at the URL.
Web web = context.Web; 

// We want to retrieve the web's title and description. 
context.Load(web, w => w.Title, w => w.Description); 

// Execute the query to server.
context.ExecuteQuery(); 

// Now, only the web's title and description are available. If you 
// try to print out other properties, the code will throw 
// an exception because other properties are not available. 
label1.Text = web.Title;
label1.Text = web. Description;